A friend of mine is dating an uncircumcised man who says he can't wear a condom because he is not circumcised. The US is the only country in the world that continues to circumcise it's males for non-religious reasons. It sounds as if the man your friend is dating may be playing the odds that the American woman has never slept with an uncircumcised man before. Theoretically, there is no physical reason why uncircumcised men should not be able to use condoms That being said, the technique for putting on condoms does differ for circumcised men. Sounds complicated, but it's really not.
Men do it all the time.