There’s an unspoken phrase here, it’s “in the way I think it should be done”.

Just because the younger generation are doing things differently it doesn’t make them wrong, in my generation it was sending text messages that was wrong because we weren’t talking on the phone. Before that it was talking on the phone rather than going to people’s houses.

I’ll also add what my psychologist told me.

Social skills aren’t innate in humans, we have to be taught them. Smaller family sizes and greater distances from extended family mean these aren’t taught by older siblings/cousins/etc like the used to and parents aren’t filling the gap, which means standards of social interaction are changing much more rapidly.