Is red hair really more common in Irish and Scottish people or is that just a stereotype?

Some actually have black hair. Yeah, it is a stereotype.

Is red hair really more common in Irish and Scottish people or is that just a stereotype?

its more common but not uncommon in other nationalities as well

Is red hair really more common in Irish and Scottish people or is that just a stereotype?

I believe that the Irish and Scots got their red hair from the constant onslaught of Viking invaders

Is red hair really more common in Irish and Scottish people or is that just a stereotype?

Not a stereotype. It does have a higher occurrence in those areas.

Is red hair really more common in Irish and Scottish people or is that just a stereotype?

Is it true that limited brain capacity is more common in trolls who have the screen identity . ?