I didn’t read all the posts so I apologize if I’m repeating anyone’s.
I don’t think that ALL full time learners are looking for rich girls – think about it – a rich girl will be used to luxuries and it will be much harder for her to give them up when her rich father can no longer support her and her family. It may even cause shalom bayit problems down the road when she MUST have a new diamond necklace for every birthday, anniversary and holiday and he simply can’t afford it. (and a diamond necklace is only one luxury, think about her wardrobe, car etc)