Bitcoins and other cryptos will never become mainstream before... people can buy water bottles with them.
Quite simple, many expecting an explosive entropy of the bitcoin adoption / price but truth is the average folk most common needs and use of money aren't met by bitcoin, this fact goes against the very foundation of any successfully implemented mean of money anytime across recorded history. It really is a political problem at it's core, the deep states run by bankers won't let a viable alternative co-exist in the streets. I have no doubt that with truly liberal and free alien civilizations, the blockchain technology would have attained (for all purposes) universal adoption in a shorter time that the cryptos have been around by now here.
What are your takes about that sentiment?
Not just because it can buy water means it is mainstream because it is a need to be adopted by worldwide and not just in specific place , remember that there are countries now that already having this existing like in El Salvador yet is this already mainstream? maybe in their country but worldwide is something we still waiting.
Exactly! It doesn't mean that if bitcoin has been adopted worldwide or most of the countries accept it, it should be used like fiat money. No, if it happens that bitcoin becomes accepted in the society and most of the country, it will become like other fiat money and an other option of payment, so the people can have a chance to use their assets to purchase things, but of course before it happens, there will be a long process and plan on how bitcoin can be used in the society, and of course, a set of rules and laws will be implemented. And of course you can't buy anything with bitcoin, for example, a bottle of water. Will you use your precious asset for that? Maybe bitcoin will be used in transactions that have a high value. As we know, bitcoin is peer-to-peer so it's safe to do big transactions through bitcoin. OP's classification of mainstream is different from ours, but it is his opinion.