Sort:  

I can see this being a realistic reason. Manners are often taught by parents, but I'd figure that even common sense should tell someone to acknowledge the person holding open a door lol... Nope, I'm wrong.

Common sense has to be made common in the home to become common. We are not unlike dogs who need to be trained.

At least according to my parents, I was exercising such manners at a very young age without explicitly being taught. Observation and replication of habits in childhood is very powerful.

It definitely depends on the average experience in your life and the people that surround you. Now kids aren't out interacting as much, because they are in their rooms all day playing video games. They are not being well socialized.

I'm certainly not going to claim that I have the best social skills out there, but I can't imagine the very basics escaping the average person. I think there's a significant component on entitlement going on here.

Also, schools are no longer respecting the parent like they used to and aren't teaching manners as strongly and in many cases they are subverting what they are learning at home, breaking down respect for them and elders in general

I've been out of school for a very long time, and don't have my own children, so I'm certainly not up to par on how this works out. This would be a tremendous factor in shaping behavior.

Then there's the news reporting 98% negative stuff, so kids just see thugs, rapists, war child molesters all the time, so respect for your elders has flown out the door, because they view most in a negative light.

Wait a sec, since when are children watching the news? 😅

Then again, social media's an unstoppable machine now... maybe not as farfetched as I'd believe.