Yeah, you are overthinking it. Your son made the big decision to get out of social media and instead of being impressed and amazed by it, you are stressing out that a college coach who is interested in your son will....
- Be turned off bec he is not in social media?
- Feels like it's too much work to talk to his Juco coach to get his number, instead of just being able to DM your son?
- Will think "there must be something wrong with this kid bec while others are addicted to and define their lives by social media, he chose to get out of it"?
The fact that you are more stressed out that he may lose out on a college baseball opportunity by not being in social media (or even think that a coach will not figure out a way to reach out to your son just bec he can't DM him) instead of being happy of all the positives from him not being in social media shows that, like what TPM said, you need to step back... a big one.
Sorry, of all the things I read here, this is the one I have the hardest time getting my mind around...