Why doesn't the UK sell things for cooking like they do in America?

I’ve often read recipes and wondered where to get the ingredients from. There’s just some ingredients that you don’t see on a regular supermarket shelf. If you’re in a city then you may be able to google specialist shops, but that’s probably going to add to the cost; especially if you’re just buying something to make a specific dish. A lot of recipes are so complicated that it’s no wonder that people just go out and buy the ready-made version. It’s usually cheaper, quicker and involves less effort. Also, there’s nothing that says that you can’t add your own flavourings or (in most cases) cook it the way you want. But cooking isn’t just about the ingredients. It’s about the utensils too. I very much doubt that you can get a great deal on stainless steel cutlery in the US. And apart from a spork; most of us Brits wouldn’t want to buy the US equivalent because it’s been contaminated with time-travelling robots. Hasta la Vista.