Don't worry about it. Everyone has different standards and all that matter is how you and your potential partner feel. As long as both people are consented adults, no ones else has a right to say anything about someone else's relationship. IF you like this guy and he is receptive, then why not go for it. And who could blame you for crushing on someone that looks like Paul Walker? lol. Just follow your instincts and do what you feel is right.
As for my own take on age and dating, I would prefer to date someone in my own age range and probably would prefer a guy who is maybe a little older, just not too much older. Even though there are plenty of handsome older men who would make great partners, I think I would prefer the age ratio to be closer than not. No need for me to act out on my daddy issues, lol. Seriously though, I know plenty of people in relationships with an older/younger partner (both male and female) and it works for them. Just follow your heart as your happiness is what is most important. Good luck with the search and hope it goes well.