Why do I get more ladylike as I get older?

when I was under 21, I was a tomboy. By the time I hit 24, I become dressing and behaving more ladylike. Now that I’m 25-26, it’s getting even more lady like not only on the outside but also on the inside. Do we still grow into women into our late 20s-30s
Why do I get more ladylike as I get older?
Post Opinion