I don't like gamestop because even though me and my friends are obviously above the age of 18, they still card us when buying mature games.

^ I get that too. I'm 25, and I get carded every time. Usually by people who are much younger than myself. They get really embarassed after they look at my ID.

For comparison, drinking age here is 18, and I don't get carded for that.

I don't know both of these things.

so i was with a friend at my house and we where bored so we decided to buy a game, we went running to the gamestop because we didnt know how to drive and there was nobody at home, when we arrived at the shop we selled a game i had because we didnt have money either so we tried to nuy a naruto game so we could play both, and well the game was like 25 dollars and we had 24 so i told the guy come on its just one dollar and he said nope, so we waited for a solution and stuff. at the end we couldnt buy the game and man i was tired so he left and we got all cranky and stuff.
So yeah.... i hate gamstops

Just a legal procedure. Nothing wrong with it imo. Better be safe than sorry.

Also, I only have had good stories in a 'gamestop' in my neighbourhood. I had seen a nice 2nd hand game for like 15 eur, but @ the cash register I found out that I only had 10 eur with me, so I told the guy (who also happens to be the manager of the store) that I would be back to get the money. I felt really ashamed and such. After I came back, he was like "Hey, I lowered the price to 10 euros just for you!" I felt derped out and kinda went back for nothing. I am still grateful for the thing what he did.