We just celebrated my son’s 21st on Dec. 23rd. He gets presents on his birthday and Christmas of course. I just asked him if it bothered him at all.
“Well - a little bit now. All of my friends from college are gone back home, so can’t really do much celebrating with them for my big birthday.”
He did go out with an older friend for his first legal beer at a bar.
Congratulations! My oldest son turned 21 last spring. His older sister came on a visit and took him out.