Do you think it's okay for a girl in her late teens ( 18,19)to be dating a guy in his 30's?

I've dated with huge age gaps and then I dated within my own age range and it was so much better. People of any age can get along, have shared interests, have fun together, have things in common, share the same beliefs, enjoy each others company, care for one another, and even love each other. But from my experience you have more fun and laugh more with someone closer to your own age. They seem to be able to understand you better and sympathize more too.