Why can most of us have both attractive and family oriented guy?

Many years ago (in my grandparents' time) that could be found. They girl could form a family with a man that she was attracted to (he rocked her world), fell in love and got married.

Nowadays it's like things have been divided into two categories:
- He's very attactive and you fall in love but he'll never marry you nor have kids with you. He's a cad type, changing girl after girl, keeping a collection of eternal live-in gfs.
- He's family oriented and reserved that won't waste the girl's time. He actually does marry her and is decent but the woman isn't really in love with him. He's her safe option though.

Why is it hard to find a man that fits both categories; he's attractive and rocks your world but is also family-oriented and will have kids with you?
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Obviously I would go for option 2 if don't want to get string along nor lovebomed with false promises. But still... it would suck being in that position of not being excited about the intimacy part.
Why can most of us have both attractive and family oriented guy?
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