Sons senior year included 5 MLB workouts, two all star events put on by scouts, filling out 20 MLB questionnaires, and a few home visits. Scouts at almost every game from sophomore to senior year (2 D1 pitchers a year starting for his team), I offer the following.
Make sure the sights are set on college. Focus on that and you will not be disappointed. We considered the extra MLB attention to be a bonus and something we had a lot of fun with. Its nice having people in pro ball say good things to you about your son.
I think the HS ballplayer knows how to handle it along the way, if the parents stay grounded. If there is pressure thinking that draft will be the ticket, and it doesn't happen or he is not picked high enough, then you all might feel you failed.
In his situation he knew college was the best place, after seeing a lot of his older friends picked in rounds higher than 10 and then out of baseball altogether within 3-4 years. Now with no college degree they are wondering what is next.
I think TPM says it best, unless you make life changing bonus (and that is a different amount for different people), college is the best route first. Otherwise, if he is good enough as a HS senior to be drafted, but not make life changing money, then why not get most of school out of the way and then give the pro game a chance.
I think you will know if he is going to be a bonus baby or not (you may already know). My advice is to set level expectations and not sweat about it too much along the way. I know, easier said than done. But anybodys chance of making a living playing baseball is extremely small. Better to be excited about the college team.
Go to college games when you can, watch it on TV, point out the fun the players are having. You can only be 18 when your 18, there is no going back.
Good luck