I’ve heard it explained that “hey” used to be more of an urgent way to get someone’s attention, rather than a casual “hello” like it is now, so it sounded rude to some older folks.
I’ve heard it explained that “hey” used to be more of an urgent way to get someone’s attention, rather than a casual “hello” like it is now, so it sounded rude to some older folks.
It seems weird to me to derive that from what I was taught to be the standard expression to answer back to “thank you”. It didn’t seem to carry more meaning than vocalizing your acknowledgement of the given thanks.
The younger generations were taught to treat others with common decency by default. That means nobody needs to be told they’re welcome.