Uptalking is not just for females.

It's catching on amongst the males. 

"One possibility is that this is an extension of a pitch pattern that we actually find in most varieties of English which is used when you're making a statement but you're [also] asking indirectly for the interlocutor to confirm if they are with you," Prof Arvaniti said.

That theory entails the inference that males are increasingly feeling a need for assurance that there is agreement and acceptance.