People have been spoiled by this silly unrealistic feature by too many lesser games, this game strives for realism and people in those days had to sacrafice their gorgeous looks for a little more protection.
It's not silly, it's just a good feature, it is up to the player if he/she wishes to use that.
Having to put it on favourites and removing it and then reequipping it works too but maybe everyone don't want to do it that way, and it's not lazy.. if you do it again and again eventually u'II just stick with that ugly helmet or simply just have it off and screw the bonuses you may recieve.