Which mental age would you apply to a 20-year old on his own since 15 vs. a 25-year old mama's boy?

Started officially getting to know a guy. He's much younger. ***THIS POST IS NOT ABOUT THAT***.

I asked him how long he has been in the city we live in (it's big and has a dark side). He said he has been on his own since 15.

What mental age would you give him?

I had a failed engagement with a guy who was so far up his mother's backside it, was near oedipal and he always lived at home.

What mental age would you give him by comparison?

Which mental age would you apply to a 20-year old on his own since 15 vs. a 25-year old mama's boy?
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