Fortunate for our program we have hs coaches that care. They have been around and would be happy to help out the kids. In my son's case the hard work payed off. More hs coaches should do the same for the kids. It's a top hs program that he plays for that has always been successful. Very proud parents of all that he has worked for. Just to put it out there he only played in one recruiting tournament and is getting calls and emails from D1 schools. Keep your kids confidence up and encourage him to go get that spot on varsity if that's one of his goals. You can get looks from D1 without having to do travel is all that I'm trying to say. Don't give all of these travel teams that much credit.
If your son did "one" event and got 15 D1 teams interested, that's unheard of, he must be the next Rabil. Again, your advise is great for a kid at a top HS program, with a Coach that's on the ball and interested in getting his players recruited. Without that support, it is very difficult to get recruited at the D1 level. That's why the club piece is so important. No, I'm not affiliated with any Club, just letting folks know the other side of the story.