If it doesn’t bother you or your partner, then it shouldn’t matter what anyone else thinks, nor should it become an issue in your relationship.
Companionship is so important, and finding someone you can relate to regardless of their age is imperative.
If you find yourself attracted to someone, don’t worry about the difference in age but the similarities you share in common.
Know that you are both mature adults and know what it means to be in a grown up relationship.
Dating someone older in midlife can be intimidating and new for you.