Anonymous wrote:Max is just fine.
If he wants a more formal name Maximus is awesome.
While I understand it may be popular, it is not as popular as PP mentioned. DS has only met on Max in the past few years at school. The likelihood there will be 2 in your son's class is low. Maybe more than one in the school and maybe even more than 1 in the grade but not likely more than one in the class.
Anonymous wrote:Sure it's a proper name although you'll get many folks who say otherwise. I have a Max-- "just Max."