When you grow up poor, the fact that other kids have servants picking up after them, take family vacations on the other side of the planet and get a brand-new sportscar when they first learn to drive can all be pretty hard to believe.

But those other kids --- you know, the rich ones --- can be just as baffled about how the other half lives.

This question got people going on Reddit recently: What are some things rich kids won't understand growing up?

What would you say? Take a look at 10 of the most riveting responses.

1. That hanging out can be a luxury

Three young women enjoying cocktails and taking a selfie
The rich girls didn't understand why the poor girl wouldn't hang with them.

When I was young and super poor my rich friends would get mad at me for not having the money to do things with them. From their perspective I was just ditching them all the time.

More recently my significant other (who comes from a wealthy family) and I have been making common law official and moving towards being "married" and he totally freaked out about the fact that I have student loans. Apparently he didn't realize that a kid who grew up below the poverty line wouldn't have school paid for them in full.

In other words rich kids don't seem to get that money can be scarce.

| DaughterEarth

2. That certain gifts aren't givens

Modest older home with an empty driveway
Susan Law Cain/Shutterstock
When you're poor, there's no new car in the driveway when you turn 16.

[A rich kid won't understand] that when you turn 16 you don't get a car, you just get to be 16.

| jonhalo

3. That friends may turn down an expensive invite

Four male friends on a beach
Luna Vandoorne/Shutterstock
Rich friends may not understand that not everyone can afford to go to a destination bachelor party.

In the last five years or so, I've had something like six close friends get married. Only ONE of them actually had a somewhat downplayed, relatively local bachelor party where we went out and partied, got him a lapdance, dressed him up, etc. Everyone else just seemed to assume that I would absolutely drop $500 to $1,000+ flying and spending four to five days abroad.

Not hating the players, but I just don't get it. This is just expecting someone to pony up a month's rent or more, just off the cuff, because they decided to get married.

I would honestly feel so bad if I was the groom. Like, I would try and make it as cheap and convenient for everyone as possible. I wouldn't demand everyone pay for flights to Thailand or they weren't "true friends."

| iliterallydied

4. That some kids have to hold jobs in college

Teenage girl working cash register in fast food
Lisa F. Young/Shutterstock
Rich friends may not get why you can't just quit your crummy part-time job.

[Rich kids don't get] having to work and study simultaneously. I'm studying for the MCAT while working 35 hours a week as a cashier, and whenever I complain to a rich person about struggling to balance the two, they're always like "Duh, just quit your job!" as if I can generate rent money out of thin air.

| riali29

5. That birthdays aren't always happy

Lone slice of birthday cake with blown-out candle
Vasilev Evgenii/Shutterstock
Birthdays aren't necessarily happy for poor kids.

Just not having a birthday party when your birthday rolls around. Not even a small one where friends come over to your house. Nothing.

| ohbrotherherewego

6. That not everyone can pay people to do stuff

Middle-aged man fixing windshield wiper blade on a car
Indy Edge/Shutterstock
When you're poor, your mechanic may be Uncle Ted.

When a rich person's car breaks down, they can just whip out their cellphone, get it towed to a mechanic, write a check and move on with their life.

When a poor person's car breaks down, they have to call Uncle Ted. Because Uncle Ted sometimes knows how to fix cars.

Rich people can have a stay-at-home nanny to watch their kid. Poor people have to drop off their kid with a family member while they go to work.

Poor: dependent on each other to survive.

Rich: dependent on checkbook to survive.

| Yossi25

7. That some kids get knock-offs for a reason

Boy playing with a video game console
Monkey Business Images/Shutterstock
A poor kid's video game console might be Polystation, not PlayStation.

[Rich kids will never understand] getting off-brand stuff. I didn't have a PlayStation, I had a Polystation, 9000 games (really five games repeated 1800 times).

| RogueBestGirl

8. That 'poor' is more than opting for cheap beer

Row of beers in plastic cups on a bar
Piotr Piatrouski/Shutterstock
You're not broke just because you're buying the cheap beer.

Where broke to them means only getting the cheap beer at the bar or only ordering takeout once or twice a week. Or, no, I can't just call my parents for money when I'm stretching things pretty thin. It's mindblowingly frustrating at times.

| resilienttbastard

9. That not everyone lives in a palace

Large house next to a smaller one
Alexandre Rotenberg/Shutterstock
The rich kids may want to know why your house is smaller.

[Rich kids never understood] why my house was so small.

I got made fun of because my house was "so small." Like "a garage size."

Sorry I didn't live in a mansion like the rest of them. Come on, we had a living rooms, never had to share rooms with siblings and 1 guest room but it was still so "tiny" to them. Like so tiny they almost missed it and thought it was someone's shed!

| wistful

10. That some Christmases aren't so merry

Fireplace in a barren, rundown home
John Arehart/Shutterstock
Christmas isn't so cheery for poor kids.

[Rich kids don't get] that Santa doesn't visit some kids.

| SentientLife

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