Have your son get his private certificate. If he likes it, have him knock out a bunch of ratings over the summer and his free time. He doesn’t need to go to ATP for that.

He can start instructing and building time as soon as he’s 18. He can go to college and work as a CFI, and by the time he graduates he will have a class date waiting at a regional. He doesn’t even have to get a degree in aviation if he doesn’t want.