@frozendaisy
Collectively as consumers we all play a part in the decline of the high street. Supermarkets didn’t help but they didn’t destroy the high street not like Amazon has. Before online the high street adapted, smaller shops sold what the supermarkets didn’t.
Small shop/High Street demise started LONG before online shopping.
In our small town, we got a huge out of town Asda early 90s and within a couple of years our "High street" was dead. We'd previously had an M&S, Woolworths, Tesco, Argos in our town centre, and all closed. As I say, long before the internet.
Same happened in other towns that we frequented. Then of course, these towns got a second and third out of town supermarket which killed off the remaining town centre shops that had managed to survive until then.
Obviously, the internet has killed off lots of other shops, large and small, that managed to survive the onslaught of out of town retail parks and supermarkets in maybe "naicer" towns with wealthier populations who wanted more "niche" products from small shops.
Our family had a typical newsagents shop on a parade of several shops including butcher, greengrocer, grocer, chemist, post office, hardware shop, bakers. When a whopping great Asda opened up around 1993 a couple of miles away, these shops closed one by one, until we were the last shop standing and ours had to close in 1997. Nothing to do with the internet!
Different High Streets suffered at different times. Your's may have survived until the internet shopping took over, but ours was long gone a couple of decades before!