Mass adoption does not mean mass ownership.

Many people reject the idea of mass bitcoin adoption because they believe that the majority of the population is not going to be buying BTC, or they simply believe that most people are not tech-savvy enough to do so.

What these people fail to understand is that mass adoption does not mean mass ownership. During the gold standard most people owned little to no gold, yet trough their currency they had adopted a gold based system and had indirect exposure to gold.

Mass adoption does not mean everyone will have a wallet app on their phones and a hardware wallet at home. It means that your pension fund will own Bitcoin. Your insurance plan will have a 10% allocation. Your workplace has a small "just-in-case" allocation on their balance sheet. The purchase you do at 7eleven in your local currency will be settled using the lightning network instead of the old system from Visa/Mastercard. The app you use to send money to your friends to split the Uber cost will be using lightning. Your local and state government will quietly own some too, either directly or trough some financial vehicle like a trust or an ETF.

Most people will live their lives as normal but the services that make their world go around will be using magic internet money and they probably will not even know it. The only clue will be that they are somehow better off financially than before.

The reason why all these services will adopt Bitcoin is simple: Greed. They will save money on every transaction and they will most likely outperform anyone who doesn't hold any sats.