Yes.

changed her name and cleaned up his profile

What the fuck do you care you care only here to scam people out of money which makes you the ultimate lowlife...

It all depends on whom you ask, does it not???

You're a proud single dad, how did it work out for you?

It really depends. Some people need a contractual obligation in order to feel committed, some don't. In property situations, it can protect the rights both parties and is better than simple verbal agreements. It is beneficial for tax purposes, child rearing, other societal tasks.

Yes. Having a close loving relationship is not. Marriage is a bargaining chip used by disenfranchised women. But as long as this arrangement strongly favors women, men wiil (or should) be reluctant to agree. No marriage should happen without a prenuptial agreement.