Why does my grandfather fuss at me when I come home late from work?

I’m 28 and when I would come home late he would have a mean look and tell me I don’t need to be out that late and why I’m out so late. But I would get irritated and avoid him or lie…. Even when going on walks alone

he's 90 by the way

Why does my grandfather fuss at me when I come home late from work?
Post Opinion