That is somebody's opinion but for me just a stupid statement. One of the very well known coin ETHEREUM is also an ALTCOIN and do you think it is a scam? Without any doubt your answer will be no. So it is better to change your statement.
' Its late ' is something that is not valid in CRYPTOCURRENCY because CRYPTOCURRENCY market is totally unpredictable. So if there are downfalls , surely there will be rise too. Hence, it is never too late to invest in CRYPTOCURRENCY.
One of the best way of investment in today's date. Great probability of huge profits. A type of another income source. These are the few reasons why people are falling in love with CRYPTOCURRENCY. Therefore CRYPTOCURRENCY is making world go crazy about it.
My reply to your question will be no. I know there are going to be many people who will say yes. But that is not the reality. I know that market is falling to low but surely it will rise soon. We should be patient.
Bitcoin cannot be a global currency because the highly developed countries are not accepting it officially and are also not ready to accept it in near future. And the developing countries take it as a way of development so had legalised it.