I do hope that your man can get over his feelings.
1) The other guys don't determine who he will play with; the ladies do and I've heard that some guys can't take their wives in
certain locations, where the smaller guy is often invited to enjoy.
2) Larger guys can't get deep-throated as easily.
3) Larger guys can't get it all "in", smaller guys get to enjoy the feeling of full penetration.
Being
LARGE isn't all it's cracked up to be.
Male D