Every man wants to know that their life will matter. Every man wants to leave a legacy when they are gone. This is why it matters how involved you are in your kids lives and what you teach them. When your daughter marries a man, your legacy will be determined by him.
Now, think about how men are involved in who their daughter marries.
They often know very little about the man who marries his daughter. They only know that their daughter likes him, he claims to be a Christian and he came to ask permission for her hand. What a guy.
Sadly, this is typical and seen as a good thing and not even close to be able to know if he is worthy of your daughter.