It isn't wrong to marry, even if you have never been married before. But those who marry will have a lot of trouble, and I want to protect you from that.
But suppose you are engaged to someone old enough to be married, and you want her so much that all you can think about is getting married. Then go ahead and marry. There is nothing wrong with that.
I would prefer that young widows get married, have children, and look after their families. Then the enemy won't have any reason to say insulting things about us.