It's the same thread it's always been.
How old was Neelixes final girlfriend in Homestead?
I'm not saying that she was too young for him, but she was definitely too young to be the mother of that tweenie, unless she was a tweenie herself when she had him.
It might just be the legal and morally condoned habit of Talaxian men to marry very young girls, no different than on Earth just about everywhere before the 20th century... The poor could do what ever they wanted, but if you had a couple farthings to rub together your parents were going to sell you or buy someone else you were stuck with.