It is not still too late to invest in bitcoin. When the price was $12, some people will say it is too late to invest in bitcoin. When the price was $1000, some people will say it is too late to invest in bitcoin.
They will say the same thing if the price of a bitcoin is 10.000 $, 100.000 $, 1000.000 $ and so on. There will always be people watching the growth of the bitcoin from the sidelines and whining that they missed a good time to invest. There is no need to convince anyone to buy the bitcoin and say that now is not too late to do it. Those who want to invest will do it without outside recommendations, and those who want to continue whining will find a million excuses not to do anything.
Here on the forum, people often ask what is the most ideal moment to buy a bitcoin. I am inclined to believe that the best moment is when you learned about it for the first time.