21, No Family History for Balding?

I’m 21. My father has a normal hairline, and my maternal grandfather has a head of hair too (it’s gotten thinner and seems to have definitely matured but he’s 80 for god’s sake). I thought I’d be in the clear since those two are likely the most important genetic indicators for whether I’ll go bald or not, but I’m worried that my hairline indicates balding anyway. Am I safe? The last two photos is my grandfather’s current hairline and my hairline one year ago, my hair being a bit shorter.

There is no way to tell what will happen to you. With good haired relatives, it reduces the statistical risk of balding for you, but does not eliminate it if there is any balding in the family line (either side of the family)