I live in a popular tourist city. A shop in the high street here will be about £50000- £100000 in rent a year or more, and that’s just rent, nothing else.
I grew up in a very comfortable market town with high number of private schools etc. Rent there is apparently more like £20000 to £25000 a year. It’s a hell of a lot of sales to even approach that.
Recent thread about what annoys people about independent shops overwhelmingly mentioned unreliable or short opening hours. So you either need to be covering decent hours yourself, with zero breaks, year round, all through the holidays etc, or to make enough to pay, train and keep reliable staff who won’t let you down.
It depends why you want to do this - a passion for retail, a new career, a passion for the things you’re selling? What about a Doordash local delivery service where you can choose from a catalogue of stocked gifts/clothing basics/craft supplies and have them delivered, maybe gift wrapped , to the door, by e-bike? So when I wake up and realise oh crap, I have two kids’ parties and nothing suitable, I can fix the issue? But tbh most people are just going to head to the supermarket for that.