When i flashbacks far 2013 and 2014, within that range far back i remember how people were castigating bitcoin as a means of extortion of money, and also a means of scamming peoples money, but today everyone is interested to invest in cryptocurrency and more especially in bitcoin, because from what i observed from little bitcoin seminar program i hosted in my geographical domain even a nursing mother that is approximately forty to forty eight (40-48) years is interested to invest with bitcoin and children in school is already knows what is bitcoin, so with this length of bitcoin awareness in my society i think BTC can stay till infinity.
Hoping that bitcoin may last forever but as we all know there is no permanent on earth. Bitcoin may exist in a very long period of time or may not be able to survive in a very long years. Let us just enjoy what we are getting from bitcoin as of this time.
I think there was a time very early on in which bitcoin could have been killed by the governments and even satoshi was kind of worried about it, however I think we can say that bitcoin has left that phase and it has entered the next one, and quite honestly there is no way to know for how long it will last, bitcoin is so perfect that it would not surprise me if it lasted for at least a few hundred years, however we must recognize that new technological developments could occur and a new coin could appear that could replace it, but even if this eventually happens I think it will take at least a few decades for this to happen.