This but I also had no friends so I wouldn’t have anywhere to go if I was allowed

This and also:

I’m from South-Eastern Europe so poor parents with strict and old rules.

Not legally allowed to get a summer job as a minor.

Low job opportunities for young people without higher education. Even lower for pre-highschool kids.

Not enough malls, restaurants, shops for kids to work at.

Too much emphasis on homework and school not allowing time for friends, going out, getting a job, having a hobby, basically doing normal childhood things.

Not enough money or importance given to hobbies.

Too poor to afford videogames, birthday and/or slumber parties, going out with friends, having items or passions that other friends had(videogames, sports, watching a play or a movie, going to a concert, going on a trip, owning a bike/snowboard etc.), eating out or just getting an ice-cream or McDonalds or owning a pet.

Considered too young, unorganized and irresponsible for pets.

Parents too poor, busy and stressed to spend time with me.

Cartoons and a shitty low-end PC with fast internet being the only source of entertainment.

Being sent to a farm to live with shitty grandparents or uncles and to spend every summer doing shitty jobs like taking care of animals and cleaning their space, cleaning the house, fetching stuff for them from the store etc. just because they want you to grow up and spend your childhood the way they did. Also bellitling you, calling you a pussy, a fatty, a spoiled special little snowflake.

Too hot to go outside and do anything(you need money for cold foods and drinks and for going swimming).

Too cold to go outside and do anything.

The list could go on forever.