We had a mix. My 2018 is a very smart, mature kid, so after the initial introductions I suggested leaving the coach/RC and he alone while I waited somewhere. IN a couple of cases that's what happened. In a couple of others, the coach insisted I come along. I really tried to let those two carry the conversation, though.
An important part of the visits is when/if there is a meeting with the rest of the team. Parents are definitely not welcome then...if it gets to that point, then the Coach is usually quite interested in your son.
At most schools, parents aren't seen as the enemy, and if they are, you'd have to ask yourself why.