That's... how age works, Apryl. It's not weird at all.
Of course someone born 50 years ago was born in today's year minus 50 years. Duh.
It also only works for those who have had their birthday already this year, or it will be off by one.
In response J.J. Jameson to his Publication
Lol, I didn’t give it much thought. My 74 year old mother sent it to me in the morning when I was half asleep! 🤭😬