The whole study is rather useless in a social/moral aspect as it is based on what is and what isn't offensive and that is very subjective and nothing to do with science:
This means elderly people may lose their ability to censor inappropriate thoughts, making them more likely to vocalise offensive viewpoints.
For example if an elderly black person drops the N-bomb thats seen as ok within their social milieu
But if 70 year old white person drops the N-bomb...well...watch out!
the n-bomb is alive in wanganui, i was reffing a game at the social rebel league on saturday when i heard a commotion on the next field over there was a guy going off yelling and screaming then pulled his shirt off walked angrily to his car did a massive burnout and left. after my game had finished i went over and talked to a couple of my mates who were playing in the game.the guy got tackled/fouled in the first half, then at half time told his team mates he was going to get the guy in the second half. early in the second half he got tackled again by a different player but the same race. he proceeded to try and start a fight with the guy who tackled him, when he realised he would probably lose the fight he backed off and yelled out for everyone to hear that the guy was a n-bomb, repeated it a couple of times. all the other players from both teams at this stage told him to fudge off and never come back. one person walked over to him and told him he was out of line and should give the person he abused an apology, his response to this was spitting on that person and then walked off and did his burnout to show his penis size and hopefully never to be seen again.