Parents' rooms are separated from the player's rooms (normally by entire hotel floors)..
If you are worried about what could happen to a kid in a hotel room.. you are not ready for what happens when the coaches say 'goodnight' and hand the recruit over to their player-hosts (players on the team assigned to show the recruit a good time).
strippers, hookers, booze, drugs.. I know one kid who never made it back to the hotel one night and was carried to breakfast by 4 members of the team. He's now in his 5th year in the NFL and still doesn't remember what happened that night (or won't talk about it).
.. and you are worried that somebody put crumble cookies in his hotel room before he showed up?