Can you tell how old someone is even if they have a mask on?

I’m aware that I have a baby face without the mask but while I’m at work in my mask people are literally shocked that I’m older because they think I look 16. I was so confused as to how someone can tell that I have a baby face even if I have a mask on?

I’m lost.
Can you tell how old someone is even if they have a mask on?
Can you tell how old someone is even if they have a mask on?
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