This is a cop-out be people being stubborn and unwilling to make change. In particular, I see it as an excuse over and over and over again for what today would be considered unacceptable or terrible behaviour. How many times do we hear a racist bigot say they won't change because they are set in their ways? No excuse. Doesn't make them a good person. How many times do we hear someone say they won't for instance drive safely and properly saying they are set in their ways. Big or small there is always room for self improvement. It takes a big person to recognise they need to change with the times or otherwise. It takes a small person to make excuses not to.