Juvenile vs Mature Hairline

I drew in the juvenile hairline (see fine dots on the right side of the picture) that would have been his hairline when he was 5 years old.  Note that the hairline moves upward as maturing occur. This man has a widow’s peak which shows the lowest position of the juvenile hairline.  Young children of both sexes have a concave hairline and as they get older, most men lose it while some women keep it. Read this for more details: https://newhair.com/wp-content/uploads/2018/11/phenotype-article-published.pdf