The rate of Bitcoin adoption has been slowed down since last year when two countries made Bitcoin a legal currency
i disagree, it has rather been increasing ever since then, you may say that in terms of being used as legal tender but bitcoin is globally increasing each day in adoption, day by day people key into it uses serving them on many purpose.
but with just the Internet Bitcoin can reach them and onboard them into the global financial system.
internet challenges shouldn't be a barrier again by now especially in areas with challenging internet connectivity, you can now make a bitcoin transaction without internet with an example from the video clip link provided
https://twitter.com/DocumentingBTC/status/1562855613998432260?t=j1w9z-RqVImMC3z3F4Onfw&s=19 bitcoin with no internet is successful achieved in some part of the African countries with it's adoption increasing.
limitations as to how far-reaching Bitcoin should have gotten and this limitation is traced to the presence of so many altcoins that seek to undermine the relevance factors that Bitcoin presents to gain global attention
if you're a manufacturer, no body can produce a pirate copy of your products exactly as you did, there must be some downfalls, all because they are building on someone's achievements and not developing theirs, altcoins has nothing to hinder bitcoin because bitcoin maintains it standard being the king of cryptocurrency, not only that, it dictate for other crypto their fate regarding price rise and fall, the bitcoin network is a no comparison to other centralized ones.