Is 14 years older too much?

I am 26 and he’s 40. He makes me happy. Treats me like no one has. He actually cares about my health more then anyone ever has and he is a surgeon. He’s always reminding me to eat and he talks about the future with me. But I had a few friends say “he’s too old” and he looks like he’s 35 at most girls. No wrinkles. He has a healthy body. He eats healthy, he’s that guy I guess. But what I like about him is he completes me as a person.

I’ve had friends say “you guys won’t last” even though we have so much in common and we’re so alike.

Please share your experiences dating older men?

Advice?