Re: facial hair.
Just like Paul said, you may not grow a beard or have that much facial hair. It's nothing to worry about, you may get a little bit more but probably not ever really hairy.
With the eyebrows thing, I've got a unibrow so I pluck it to get rid of it, but I might just one day say 'eh fuck it' and let it be.
No shame in trimming any hair.