My husband is 13 years older than me, and nobody has ever batted an eyelid, to my knowledge. There are double standards sometimes when it's the other way around!
I would enjoy myself if I were you, take things at a pace you're comfortable with. And I think anyone in any new relationship should proceed with their eyes open. It's not being paranoid, it's being sensible. Us ladies need to trust our instincts, and pull back from any potential arrangements/suggestions that might impact our security. That's just being smart. If nothing has given you cause for concern, then enjoy your situation a day at a time.
Wishing you all the best.