Assuming any animal could survive on Mars ? A dog . <| sep |> It ' s actual purpose is to be a handle to hold the razor precisely though . Comfort is important , but not the fundamental reason a handle exists . This is like asking why a steering wheel on a car exists . It ' s not for comfort , it ' s how you steer the car . If your issue is the handle is cold , then find a way to heat it , or as you have mentioned you could use disposable razors if you prefer them . BIFL as a concept goes hand in hand with reducing your impact on the planet through hard wearing products . A perfectly cushioned razor grip may be amazing , but is that small slither of comfort a great trade off for higher expense and waste output to you ? If so , great go for it ! If not , maybe the minor inconvenience of a cold hand will be fine .