Can 18-21 year olds go through puberty?

I've just turned 18 years of age but I look like a teenager. I'm often mistaken for a 14-16 year old.
I still have the build of a teen. Though I seem to be developing some muscle.

I have no facial and little to no body hair. Even though all the men I'm my family are hairy.

Am I simply late bloomer or is this a problem? Any advice?
Can 18-21 year olds go through puberty?
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