Contact lenses can be worn by kids as young as 8 years old as long as the child is responsible and is willing to stick their finger "in" their eyes.

I know adults who refuse to do it!
I think disposable contacts are great (but not "budget"), because you just wear a new pair every day, and it's safer because you don't have to worry if you cleaned them enough. I have to wear disposable lenses because my eyes are very sensitive.
Regular 2-week contacts may be cheaper than getting certain brands of glasses every year, since some kids tend to break their glasses in gym class, etc. I got regular contacts when I was 15 years old, and personally, that was a little late. Unlike disposable lenses, regular lenses can cause a lot of problems if you don't clean them. You can't throw them away until after 2 weeks, and some people tend to overwear them.
Young kids usually get contacts for sports or activities where glasses aren't always a practical choice. Contact lenses can also give kids a self-esteem boost and some extra confidence (at ANY age), so that's another positive side. But it's very good to be cautious as a parent to see if your child is right for them...
Some kids mature faster than others, and you really have to be careful that they remove the contacts before bed, and swap them out with fresh lenses on a regular schedule. A good way to figure out if young kids are ready is if they have good personal hygiene, and how well they keep their room/personal space cleaned up.
Maybe strike a deal with your child to see if they are willing to do extra chores to help "pay" for them? If you are still unsure if your child is ready or "needs" them, ask your child's optometrist for advice. Good luck!
