Some grocery stores in large cities do delivery. Most of the ones around me do. Perhaps in the USA it's just a city thing? I always figured that it was because city-dwellers don't always own cars to get their loads of groceries home, whereas suburban people pretty much own cars by default.

I remember Tesco, incidentally. I think it was one of the first places I ever went when I was in the UK.

You're telling me about the progression of time, man. I can't believe I was only 21 when I went to Japan...