In my mind, the wrong questions are being asked and the wrong solutions implemented.
I'll take Crawley as an example, as I lived there for a good while. It originally had just a square. Then 20-some years ago they built a mall. There's also an expanding out-of-town retail park. So, it actually now has three centres but the constant question is, "What do we do to rejuvenate the square?"
The answer is not to keep adding more capacity, and not to restrict parking.
Retail has been commoditised - the same cookie-cutter offers from town to town to town. At the moment, you can't even try anything on in clothes shops - which completely removes any advantage over buying online. And in any case, much of the clothing offer in any high street is tat. That counts even for the former quality brands. I can't tell you the last time I went into an M&S or a Clarks. There's nothing in there to draw me any more. Even socks and smalls I buy online from specialist brands.
It's interesting the point made above about Burton. Like M&S, it used to offer a quality product. It doesn't now. Next used to be a very well-presented store with minimal items out on display. Now, it's all straight-out of the box and onto the racks without being ironed - and everything is price-pointed. There's nothing there to attract me.
And so on and so on.
White goods I buy online after reading reviews through my local smaller suppliers. Food? We've been using Hello Fresh without complaint for some years now. But even there there's an interesting point. If the future is going to be more leisure than retail, then having the same offers over and over isn't going to work. I'll happily travel to the next town for a restaurant of note - I do frequently in fact, and
@History_Man can attest to the quality of its lasagne(!). But if my town centre is only going to be a sea of Costas and Starbucks and then some of the other chains, why am I going to bother? May as well entertain at home.
And so on and so on.