Trolley pushing

I went shopping in Morrisons for the first time in months (due to being housebound with my leukaemia). Seeing the lads and one girl pushing snakes of trolleys back to the trolley park reminded me of a time 33 years ago when I did just that.
I was working at Tesco Weston Favell. At that time it was the biggest supermarket in the country. People would travel from all over the county and from as far away as Milton Keynes to do their shopping. We had over 30 checkouts and at times every one was busy, with long queues at every till. This meant that we were always out of trolleys.
I had a small team of lads and our job was to keep the trolleys moving back to the trolley park in the entrance. When it was really busy we'd wait while a customer unloaded their trolley into their car and almost snatch it out of their hands, such was the demand for trolleys. We had one goods/passenger lift that would take twenty trolleys and many times I'd ride up the lift, open the doors and twenty or thirty shoppers would descend on the left, take the trolleys and rush into the store. We hardly ever had to empty the lift! It didn't matter how many trolleys we had, there were never enough. We had a team with a van and trailer touring the local estates rescuing trolleys from alleyways and ponds, and we had a contractor come in every couple of months to repair the trolleys and steam clean the really dirty ones.
Like the time a woman left her young child to soil itself while sitting on the baby seat. It was everywhere. On the mesh, on the floor. As we rushed over with a mop and bucket she never batted an eyelid, just scooped the child up, left everything and went and got another trolley and started again.
There's an art to pushing a row of trolleys, especially when the ground slopes as it did under the Weston Favell Centre. It was possible to push twenty trolleys without them breaking away if you kept them pointing upslope slightly. Once you were at full speed, a flick of the wrist would point the trolleys downhill onto a ramp up the kerb. You soon learned when to stop pushing so that the row of trolleys would stop just in front of the lift. We were out in all weathers, and apart from one or two very lazy lads who's rather argue than push a trolley, we kept the trolleys rolling, and thereby kept the tills ringing.
Now that every town has two or three supermarkets we will never see the levels of business that we had back in the seventies and eighties.
When we lived in Somerset our nearest Tesco was either Bristol or Yeovil. Now there are Tescos is Shepton Mallet where we lived, and in Wells where I worked.
In the early eighties the nearest cashpoint was in Bath, more than 30 miles away. Now even our local newsagent has a cashpoint machine.
The banks have closed branches everywhere. There will come a time when banks will be as rare as cashpoint machines were in the 80s.

We seem oblivious to one consequence. Every cashpoint machine has contributed to the loss of a person's job.
However, they'll always need someone to push the trolleys.