I heard an interview with his first manager today. The host asked him what Prince did in his down time. He said, “Really, nothing. He didn’t have any down time. We begged him to slow down a little, but he was focused on his music 100%.” He did allow Prince would throw around a basketball every now and again, but he mainly stuck to music.
Heard in a couple of interviews in recent years from an a actor and a comedian ( forgot which ones ) that playing golf with him and hanging out, Prince was just a normal guy.