That's pretty much our story as well.
Backstory: We likely made a mistake by putting him in Kindergarten "early". His birthday was such we could have put him in when he was 5... .or 6. We chose 5. Honestly... .we should have probably repeated kindergarten as the least intrusive way to help him mature.
He did OK through elementary... ."solid C" student... .that occasionally flubbed and got worse and every once in a while did a bit better.
The college thing is really not about academics.
S16 "wears his heart on his sleeve" and really cares a lot about fitting in. "monitoring his crowd" has been a bigger deal for him than our first 2... .and honestly... .any of the ones after him. He sees "the allure" of some of the "worse" crowds and left to his own devices... .tends to gravitate that way.
To his credit... .he takes direction/discipline pretty well and can see and understand the reasoning behind the times we have said no... .or gotten involved in changing his choices.
Those times are getting less and less. The trend is positive... .
So... I don't at all want to give the impression he is a bad kid... . A "maturity gap" and bad kid are miles apart. Still... .you can get involved in stuff so quickly these days... .and with all the digital stuff... .the impact will last a long time.
In fact... .had lunch with him today and he brought up social media and the Marines that are in trouble for posting nude pictures. (it sort of flowed from a related military conversation)... . Anyway... .I of course worked in a story from my day to illustrate "how much more dangerous" the world is today for "shenanigans". Let's just say when I was a younger Naval Aviator... .I found it quite funny when guys would leave their film cameras laying about on the ship. Especially guys than had announced they sent their film home to their wives to be developed... .

It really did seem like a good idea and funny at the time... .still grin today.
Anyway... .those things went "a couple people deep"... .and then burned out. today with digial... .it can go around the world and be permanent.
Sigh... .
Long way of saying... .not a good idea to send him away... .
FF