I don’t get the downvotes, or the doomers. You are absolutely right.

There’s plenty of things to do for kids, half of them free. I complied a whole list in an old comment I’m too lazy to find now, but parks are top of the list. Greenery, shade, playgrounds and other kids to play with. Hiking is also free, if you have a bike or a public transport card. Sports centers, libraries, etc, etc. If you want to spend money: zoos, pools, lessons, jump parks, kids cinemas, etc, etc.

If course it’s easier to stay in the basement, complain online and downvote, than to go outside and try things.