He loves her, logical answer
Not really. I dislike both Sasuke and Sakura immensely, they can have each other. That doesn't make it any less shitty though.
No. Only pairing I was into was NaruHina, rest doesn't matter to me in the slightest. That doesn't mean SasuSaku doesn't suck though.
Then why bother picking Sakura? She has nothing genealogically to offer a child besides pink hair. Might as well have picked Ayame if that was all.
That's almost farcical not only with their lack of development, but in the fact Sasuke would rather be out in the jungle doing God knows what as opposed to being with his family.