I have an 11 year old and a 14 year old.
They just want to play computer games and watch tv all day. Obviously i don't let them do that but when i do anything with them they complain and whinge, especially the 11 year old. 14 year old will sometimes play in the garden for a bit and 11 year old sometimes likes to help with the food shopping but that's it. Whatever i do with them i can't wear them out, i end up knackered and they still don't sleep. The not sleeping thing has been going on for years but the GP and the paediatrician just said they sleep enough for their ages 6-7 hours and suggested things i already do. It's clearly not enough though. 11 year old has autism, 14 year old has autism and adhd.
I don't mind spending money on stuff but I'm reluctant to do anything expensive that they won't enjoy.