I do agree that lots of kids are not ready straight out of HS. I wasn’t. I went one year, did pass, but didn’t do that well (had a lot of fun). Got married, had 3 kids, went back and graduated with honors. Amazing what a few years difference made.
I made it through, but not without some hiccups. For me, after 12 years of school, I wanted something else beyond going and sitting in another classroom. When they get out of high school, most kids haven’t sampled enough of life to know what they want to do. When people return, it’s usually for a purpose.