I see the same thing in colleges. In fact, colleges have become such a joke that the Colorado Early College program has 16 year olds in their third year Electrical Engineering program.
My son is 15. (STEM kid). I just paid a $1000 for his (first half of the year) dual enrollment classes--by the end of this year he'll have something close to 20 "college" credits.
He's still got two years to go. It's crazy. I mean, it's great for me as long as he goes in-state, saves me money but I recognize how ridiculous it all is.