I suspect M&S still has a segment for in-person clothing shopping, but it's declining and they're making up the different with food offerings – they've recently replaced John Lewis on Purley Way. Even if I want to try things on in an actual shop, as a small format male human, at no point in history have they had my size (small-waisted men, it seems, must be beanpole tall, whereas this one isn't). Online I can even get Craghoppers in a size that fits me.
Mind you, there are downsides to not inspecting your purchases before you buy, as I recently grumbled upon receiving a pair of new shoes that had evidently been worn for a while and returned.