Self check-out isn't going anywhere at all. Have you noticed that Dollarama is really getting big on self-checkout? Farm Boy is a bit more pricey and is aimed more for people with deeper pockets for sure so those people still get human contact.
Haven't been to Whole Foods in awhile, since the pandemic nonsense, but I'm sure they have a little self-checkout area. Wal-Mart does, Shoppers, does, No Frills, etc, etc.
I'm telling you, they do not and will not give a flying fuck about the aging population, nothing is going to revert back.
I went in to CIBC the other day to transfer some money from my saving to chequings, the lady (very sweet older Asian woman) whispered to me to go to the ATM since she would have to charge me $5.00. Wtf?
So clearly I went to the ATM to save that $5. All to change our behaviours, so it's going from the teller > ATM/online, online is technically cashless and eventually, no tellers, no cash. Let it cook, you'll eventually see it.