Contemplating the lesser of two weevils.
It seems like a lark to join up with Uber. You can either sign up with them and hand them your credit card details - something I really try not to proliferate across t'Internets. Or, join Google+ something that I have avoided thus far. Oh yeah, there's a Facebook option too, but as that has so much wrong information about me, I don't even consider that.
Think it has to be Uber direct - the ramifications are fewer. but then, if I do G+ that will stop the youtube age restriction, that appears to be intimately linked to G+.
Third option, join G+, join, leave G+.