That's partly because of growth based valuations, and fast-acting network effects. The whole model is predicated on "get there fast, get the monopoly". Which you can't either with a traditional, non-scalable business (restaurants) or even a scalable industrial business (cars) - yes you get economy of scale, but they benefit relatively little from network effects of other people owning them. Goods like fashion which don't need a service ecosystem, even less so.
Total scalability & strong network effect points toward a "get the monopoly, now" business model. Which, IDK, might suit some things but definitely isn't the right fit for all things tech.
Right — I totally understand why things are the way they are using the tech industry startup model. But using that model is relatively new, and adopting it not a prerequisite to starting a tech business, even if that’s the only way people do it these days, generally. Becoming a monopoly immediately in some market is the goal of someone that wants to become the monopoly immediately in some market. It’s neither a requirement of, nor mutually exclusive of having a good idea that you want to turn into a business. That business goal might be easier in technical businesses, but it doesn’t seem to make better or more sustainable companies. “That’s the way it is done” is usually the worst reason for doing something. It doesn’t mean it’s bad, per se, but it definitely doesn’t mean it’s good.
Total scalability & strong network effect points toward a "get the monopoly, now" business model. Which, IDK, might suit some things but definitely isn't the right fit for all things tech.