Ha, my experience was somewhat in between, I needed a note each time until cashiers memorized me, after that no notes were required. The funny moment when I got adult and started to buy cigarettes for myself, one time when I was 25, I got refusal from cashier because she claimed that I stole ID from my older brother in her opinion (for the record I’m the first child of my parents 😇). At that point I remembered good times when my classmates could buy cigarettes near school from some retired old guy (non-KYC before it became mainstream 😀)