The average citizen of the developing nations (Nigeria) do not earn a dollar a day. That is #₦416. 67 = $ 1 rate in 2022.
https://www.google.com/amp/s/www.naijanews.com/2022/03/02/dollar-to-naira-exchange-rate-today-2-march-2022/%3famp=1The average person in Nigeria lives below a dollar a day.
https://www.google.com/amp/s/nairametrics.com/2020/06/01/the-empirical-truth-about-an-average-nigerians-price-point/%3famp=1Since the average citizens of the developing nations (Nigeria) are not living with a dollar a day, then they can't afford Smart Phone which is very costly and also uses to access or trade crypto currency.
And Bitcoin talk Forum and crypto trading needs a smartphone, laptop or desktop.
Using myself as an example, in my early days with crypto and Bitcoin talk, I used a smaller phone after registration, having just a gig ram and limited rom for memory, it wasn't sufficient to navigate the net. So I faced a lot of challenges. At some point, I have to borrow a friend's phone just to meet up on certain ends and that's very disturbing. I imagine a lot of other citizens facing similar difficulty/challenge.
In the Christmas holiday when I went on a visit to some of my friends and family members in an interior rural settlement, and it was my early days in the forum for sure, and I had a growing zeal for the forum. While I was there, I faced a major network challenge which resulted in my borrowing of a friend's device just to access and got updates in the forum with a Tecno T301 phone and it doesn't even display article in full to make a good read, not to even mention of login which is practically impossible.
In other words, it is not all the people that have the strive on crypto currency that can access it. Therefore, smart or suffisticated devices becomes their weakness or limitation to any practical participation.