How long is the hair the healthiest?

I sent it to Weibo the other day: Short girls can't grow two things-a scarf and hair-if they want to look tall.

Then a girl asked: How long is the best hair?

I ......

This really stumped me. Personally, I don't think there can be a unified standard for this!

Everyone's height, body shape, face shape, head shape, hair quality, hair volume and hair color are different.

For a while, I left my hair on my chest, but my sister didn't like it all the time, because when I was free, I was flat shoes, and leisure sports were a bit childish. My sister always says I look short and fat.