the level of service has changed a lot from where it used to be, which I put down to changes in the labor markets, as well as the culture of people who are in these positions. The young don't seem to care about the job they are getting paid to do, and at some point, I think this habit will come back to haunt them in later life.

This.

This really resonates.

I was in a local shop yesterday, I had a few things to pick up, some bits and pieces for dinner. I brought them to the counter and the guy serving me continued his conversation with his friend behind the counter. He never made eye contact, never said hello, no thanks, no goodbye, nothing.

Now, possibly he was a student, just working it as a part-time job, but I couldn't believe his ignorance and lack of professionalism. I said thanks and walked out, but found it very strange, and didn't think of it again until I read this and it ties in to your narrative.

I worked loads of part time jobs in hotels and bars throughout my secondary school and University life and I was always social, respectful and friendly to every customer.