Tell them, "That's why you look (their age +15 years) and I look (your age -5years).
You wish you looked this good.
Try standing uncomfortably close later in the day to the one that likes to pinch/ pat your bottom.
My cloths keep me warm, dry, comfortable. Your cloths cover up your ugliness. Can you put more on?
Ask them to ride the last couple miles with you (if you ride that far) to see what it's like. They'll usually respect you after that.