You can get cheap kites at sporting goods stores - the parafoils pack down into little bags and don't have spars to break or go missing and are like $20-30 for a small one. Single line kites feel a little bit like portable lawn ornaments; you may have a little bit of a challenge getting it up in the air but once it's up it's up and there's nothing else to do but watch it and show other people that you've successfully flown a kite. There's more fun in building, because then you can do something unusual and take it to a show and show it off to other kite nerds, but that requires a lot of time and energy.

Dual-line (stunt) kites are a lot more hands on and can be pretty fun. Getting really good at flying one can take a lot of practice and you can pull off some crazy tricks, or you can grab a stunt parafoil and feel the pull of the wind. It's a nice zen way to spend time outdoors instead of being inside playing video games or something but it's also one of those niche skill hobbies like juggling or poi etc etc. You do it because it gets you out of your head for a while and the motion and color tickle something in your lizard brain but only if you have time to kill and you don't have anything else you'd rather be doing. You can also get basic stunt kites for around $50 if you really need to check if you missed out but it's just one hobby among many imo.