I think one just has them and it's common in men...(does it mean men are wiser? HAHHA). but honestly, my grand dad had, dad has them, my brother has them and they all wise men. I don't have apart from like one or two lines, that too when I try too hard and I do have a stressful life so I don't think its coz of stress. I also have a general lack of sleep....so not that too.
IKR,
He is too young for those lines 🤣
Do they form when people give too many expressions or due to stress and lack of sleep?
I like them on Sai, but I don't want them for myself at my age 🤣🤣