I am old school and proud to be so. It costs nothing to have good manners. Yet I did once get told off for saying thank you to much. Yes I kid you not it is true. I told the gentleman. “I am sorry but I was bought up not dragged up”.
I always respect my elders and when possible help others, because one day I may need their help.
There seems to be a lack of any of these things these days and I am not just blaming the younger generation, because some more mature people are to blame as well.