For most hobby stuff you can't just go to a store anymore. Bicycle example... that used to be pretty straightforward what you need to buy and you'd get parts at the LBS. Now? Have you bought anything for a MTB? "Ah, you need a rear wheel? Ok, is it regular, boost or super boost? How about the brakes, disc or rim? Oh, disc, okay - is it 6 bolt or center lock? How many spokes does it have? 28, 32 or 36? What color, black or silver?
Of course things have degraded to the point where you can't even go get something basic like motor oil or printer cartridges locally anymore. 50% of the time I find the shelf with an empty spot with the product and price label staring at me.
The way we do business has changed many times over the years. Malls are dead and so are many local stores. It is unfortunate, because small businesses are a great way to keep money in the local economy and in local families. But that's just retail. Hospitality, construction, services etc. are still there and probably will remain for a long time. You won't be able to order a haircut on Amazon. Even though we all tried.
G