My DH is done but DS isnt and he is now 7 he has never once asked why they are different I dont think he has even noticed I thought that it is better for my son to look the same as the boy in the locker room when he is a teen rather than looking like his dad who by that stage in his life wont be looking at his dad anyway.

I dont think it matters too much but most little boy arnt done now as in the public system is very hard to find someone who does this anymore. Plus it will be the norm when he is ready to use it for its intened purpose so all the girls will think he look normal not the other around iykwim