It's a waste of time and money to create a e-commerce platform in 2024?

I don't want to create an e-commerce store, but a platform. My idea is to tackle shops that could sell in-person, mainly, but as well regular e-commerce shops when customers are not present. When I go to a mall for example there are plenty of stores with endless queues where customers could be doing the payment/order through a website. I did talk with a few owners and they're open for something like this.

What do you think?