Actually, the government in some countries has a hidden agenda towards cryptocurrencies. Some are just pretending that they are against it but in reality, they are secretely storing up crypto inside their national banks. In terms of predicting how long will bitcoin prevail, we can never be certain since no one can ever predict what the future holds. If we're going to rely on the probability that bitcoin can last our whole lifetime, considering its position and capability right now, the probability is high that it will. Instead of wondering until when will it last, maybe it would be best that we make the most from it while it last, trying is much better than regret.