I've cried occasionally in recent years through laughter but never through sorrow. Mid 40s now but I have few recollections of crying through sorrow since I was a child - all brought on either by the breakup of a relationship or the death of a grandparent.
I suspect I'd probably keep my crying to myself if I had a reason to, which seems to go against the norm on the internet. On reddit in particular, people can't seemingly wait to announce their tears over one thing or another. It's like a competition as to who is the most emotional. Part of me thinks "Good on you, I wish I was that emotional", the other part of me thinks they're crying out for attention.