Bitcoin adoption was not institutional-first anywhere else either! It was always regular people who first adopted it and then the institutional investors jumped on board and tried to take their own fish from the "stormy waters" that is the bitcoin market.
And moreover they always pay attention to what the public do more and invest in it. That's one strategy that they use. The public were keying into Bitcoin fast and when they noticed it. They poured in their billions into it and it drove the market price even higher. In the case of Africa, Bitcoin is solving a very major problem in the society. So it's adoption will likely increase more.
I'm talking Africa now because the countries in that region are usually referred to as developing countries, instead of developed countries and we can see why because, they share the same institutional issues like; currency instability inflation pressure and weak banking trust.
They also share high youth population, and just recently starting to experience and increased entrepreneurship culture and the need for cross border payments.
As a result But in in the African region may not be adopted through institutions, we could see it's adoption through measures like; informal trade, freelancing, remittances.
Right now Bitcoins adoption is taking the underground route, but not for long, as its getting to a stage where it's unavoidable.
Africa is no small continent. We are the world's youngest population where over 50% of us are between the ages of 18 and 26. With that number, we young adults are into ease. If something seems easy, we would buy into it. Ordinary people are the ones that feel the effects of inflation and the rest of the issues. So we will be quick to adopt something that brings a solution to that problem.
When something solves a problem, it gets adopted faster. So why then are institutions slow? They are not slow actually, because they run under a government. Things cannot just be carried out like that without regulation from the government. And again, that so-called solution threatens the very fabric of the government. Adopting Bitcoin that quickly won't be easy for them.