Is this genetic? Why does my hairline not grow hair in the middle area? (Photo)

I have always had a weird hairline , that includes baby hairs all along my hairline but it really bothers me that the hairs are getting thinner. My hairline is not as full and it looks like I have bald spots because hair doesn’t grow in a certain area . I have had labs done and nothing comes back abnormal , thyroid levels are good and no iron deficiency. Does this mean I might experience hair loss as I get older ? What can I do to make my hairline full again ?