What I think would be a shame would be if centres disappear and we all live in groups of houses (whether villages, estates or conurbations) that are basically interchangeable, with no centres at all.
People need to meet informally. If we only see one another 'by appointment' many people will be stuck in their homes, and loneliness will increase, along with associated mental health problems. 'Going to the shops' often used to mean 'going out to mix in the world, and I wonder whether that is what people hanker after, rather than the act of shopping itself.
I started online shopping years ago when I was much busier than I am now. Running a home, working full time and looking ofter two children with a husband who was often not there left little time for shopping. I don't drive, so it wasn't possible to go to our of town centres, anyway. Local food shops are good, but the big supermarkets are miles away, and going to the butcher, deli, greengrocer etc separately would take too much time out of family and 'me' time. Online shopping was revolutionary and I've never looked back.
But when I was 16, I loved going to the city centre on Saturdays. I would meet friends in an ice cream parlour or cafe, and we'd window shop, try on clothes and just 'hang out', often bumping into other young people by accident or design as we went. We only had our pocket money, so did very little actual shopping, but the whole experience was very much part of our lives. David Attenborough could have made a programme about the courtship habits of the greater spotted teenagers ). That still needs to happen, I think.
Also things like popping into coffee shops after dropping the children at school, where mums met up informally and talked about crying babies or stroppy toddlers. That was a support base that was invaluable. Older people too often enjoy a stroll around the town, and a cup of tea watching the world go by. It's exercise, and makes people feel connected. We do need that connection, and I think it's vital that councils factor that in to whatever replaces 'shopping', as the purpose of town centres. Whatever we have instead of shops needs to let people get together, and just 'be'. Ideally it will cater for all ages and income bands - there is no point in having 3 Michelin star restaurants, or a choice of child-friendly cafes with nothing for other groups. It needs to be planned.
I really hope they have the imagination to think beyond profit and remember the other functions of town centres. It's up to us to remind them, though. If my local council is anything to go by, they won't - they work on the assumption that everyone has a car that they want to take everywhere, so they can charge for parking. They are stuck in the past and want to rake in money from high commercial rates, and they listen with half an ear to requests for public transport and other services that may not be profitable - even our public toilets have been phased out, which makes life very difficult for the young parents, the older residents and those from outside the immediate area who can't just pop home for a wee. We must ask relevant questions when they are up for election and let them know that these things matter.