Obviously the relationship is the most important thing. That goes without saying.
Holding hands is part of any relationship; giving physical pleasure to the person you choose to spend the rest of your life with is part of your relationship.
Let's face it, the anti-premarital-sex lobby is historically and currently driven by the fear of children being born outside of wedlock. So use contraception responsibly. And fathers.....? accept that your daughters need physical pleasure, whether they are married or not.