And they got married when he was 27! Its normal. They are both adults and have reached the age of consent so it is their decision whether to date or not. When I met my wife she was 20 and I was 26, the same difference in years as the man and woman you are referring to.
I was having breakfast the other day with a friend who was giving dating advice to his son. For purposes of his anonymity, I am going to call just call him "Son. My friend said, "Son, you're 18 years old, so I am going to tell you how you date. Since you are 18 years old, you are allowed to date a woman half your age plus seven. You're 50, so that means you can date a woman who is