Going pro is a whole other story. I believe the posters on this site understand the numbers. There are enough stories of only going so far even when turning pro. Many posters here have either faced those odds, their kids have faced those odds or from their kids playing at a reasonably elite level know other players who went on to face those odds.
In fact, there are two threads on this board about playing in the minors. One is current about minor league pay. Another is an ongoing thread on the trials and tribulations of being a minor league player.
One active poster here is the president of Perfect Game. While he doesn't claim to have all the answers he sure has seen a lot from parents wasting money on Perfect Game showcases (which he doesn't like to see) to studs who are now MLB stars.
As for delusional LL dads, there are none. There are only over enthusiastic dads yet to be smacked in the face with reality (not that you're one). Welcome to the board. Have a good day.
Note: Sometimes it's interesting to see a newcomer bring an old thread forward. It shows how posters might have thought before x number of years more exposure and experience. It often shows the issues and debates don't change. It's just baseball going round and round.