Why do we look like a different person when we get older?

Question

Why do we look like a totally different person when we get older?

When people get into there 60's and 70's they look like a totally different person from when they were in there 20's or 30's?

Why do we look so different as we age?

Answer 1

It's just the way we are. We totally look different from when we're babies, toddlers and children. But our face totally changes even more once we get past 16.

Maybe somebody else has a better answer than me.