I was 16 when a horny MS picked me to be his bride. My reputation wasn't spotless so I know he wanted me for a bride mainly for the sexual attraction. He hung around all the time and I didn't have the skills to get rid of him at first. Everyone thought it was so wonderful, where is your ring they'd ask.
So anyway I did chase him away eventually. I'm in college and he has an 18 year old bride without a clue and he is a nightime janitor so he can pioneer. Of course he's on the hotlist to be an elder.
Slim pickings for the sisters so of course they usually go for younger guys. Bad plan, she won't respect him.