What do you think is it better if you entered in this market now because those who joined 4 years back and invest some good amount of money might be millionaires, is it better if we join Cryptocurrency world today
Does it have a capibility to give enormous gains like it give in the past few years, if not then why don't we should look for alternative and better and more secure investments?
Yes. It is still early. We are nowhere near mainstream adoption yet; crypto is still in its infancy. Sure, you can't pick up a bitcoin for a few dollars anymore, but the entire crypto market is still very small in global terms, there is huge room for growth.
One point is that whenever a person comes into crypto they are always late - but just late relative to everyone who is already there. They are still early relative to those who have not yet entered.