You said in your OP that 99% of the time you get stuff delivered? So I guess it's a novelty for you?
I've been food shopping with kids for 7 yrs and I can tell you that I couldn't give a fat jatz cracker what anyone else is doing. I'm to busy scanning my own kidlets and trying to focus on my list!
This is surely one for the first world problems thread?
For the record, no we don't but I don't find it the least bit rude if someone does.