I think the dad is trying to live vicariously thru his kid, and trying to capitalize on his rising star. The baseball draft for this year is done. So next year at the ripe ol' age of 17 he'll be entering the draft... with a GED, assuming he passes. If he gets drafted, he'll have all this fame and money thrust at him. Now thinking back to when I was 17, I didn't exactly make the wisest choices, albeit at the time, they were always the more fun of the choices.
Just think if I had this kids bankroll at 17. I still probably would have made the same unwise choices, just on a much grandeur scale. But I digress, I guess what I'm trying to say is, I think he should at least finish high school. Get a couple more years of maturity under his belt. That's my .02 cents.