As for the lefty question, the son of justamom is a jr in college.
Your boy is just entering college. There will be differences.
There is also a great need in the college and pro ranks for lefties that make quality pitches, hide the ball well and get people out. Velocity will always excite the scouts, but a quality lefty can get away with a couple of mph less than a righty as has been noted in recent drafts.
The lefty must get people out with regularity if he has less velocity, maybe he has a big time curve or a great change. He will probably learn a lot in college, which will help determine his future.