I didn't go either when I was in my 30's. when i turned 40 I started going I started going for preventive stuff ---make a plan to live as long as I can kinda thing. I still remember my first doctor visit --he said "lose weight" I was maybe 20-25 over weight--I lost it a long time ago--weigh less now 15 years later.
But it so funny how blunt medical professionals can be.