Light or heavy? In terms of roleplay what would make more sense?

BTW I use restoration, destruction (runes), alchemy and smithing

Heavy. You'll be taking more damage. Light is for the weak.

Hum ok, thanks a lot

Why would an archer want to wear heavy armor that would slow them down? Also theoretically you could get your light armor to be on par with daedric armor but why exactly would an archer want heavy armor that would slow them down and restrict movement? Wouldn't an archer be better with light armor that offers more mobility?