I actually think it will come from the vendor side first. If there is a realization how bad fiat currency is they will create incentives for people to pay in Bitcoin, create disincentives to pay in fiat, or just flat out refuse to accept fiat. For my business we've played around with models. A discount for Bitcoin payments only resulted in around 5-10% of people paying in sats. When we have a steep fiat PREMIUM it moves to 50/50.

discount and premium are exactly the same thing if you just push the price point slightly to the side

this⬆️ it's up to the producers of really good stuff to refuse fiat. If you want something high-quality, you'll have to spend bitcoin --> this will be the beginning of the medium of exchange era.

No mass adoption until capital gains are removed. I can’t be bothered to track each sat from acquisition to disposal to be tax compliant.

We often quickly forget that the world currently runs on a government-imposed Fiat Standard and that virtually everything is intricately tied to it, most especially the essence of human survival: "trade and commerce". The chain of commerce is often long and heavily intertwined with the Fiat system, so we should not expect the shift to happen from the Vendors first. Bitcoiners must develop the habit of always requesting payment or making payments in Bitcoin first, before exploring any other options. The moment it becomes a trend that people are actively asking for this form of payment, merchants will move with the tide. If demand for Bitcoin payments is high, merchants will make provisions to start accepting Bitcoin payments, and consequently, they'll start proposing to pay for suppliers/producers/raw materials in Bitcoin, and the chain expands. Money is democratic, and the power to institute a monetary media as money resides with the people, not merchants.

If they (producers/vendors/busniesses) refused Fiat but there are not customers willing to pay with Bitcoin, what happens next....They go out of business? Bitcoin's adoption of a medium of exchange starts from users requesting for it and creating demand. Merchants will naturally respond to the demand by making provisions to accept Bitcoin payments.

make your stuff that everyone has to have = forcing function for high quality