Don't invest early
Do not trade to soon...
You are
Tell this to those who bought bitcoin ten years ago, having absolutely no idea what price the coin will reach and having no idea that a cryptocurrency market will be formed thanks to BTC. It was those first investors who got the maximum profit, which is impossible for those who invest now.
You are right and I don't know why OP is saying one shouldn't invest early,when it is the early investors that have benefitted more from bitcoin because they bought bitcoin when the price was very cheap. There are some people who loves and believes in something that they haven't tried but because they understand what might happen tomorrow, they will take advantage of the belief and invest to hive it a trial. This was how some early investors gave bitcoin a trial because they love the privacy and financial freedom attached to it and not because they think that the price will soar high to this extend. It was a surprise for them to see that bitcoin became an investment and has great potential more than what they took it for.