Same way most people who recently began investing are wishing they started 10 years ago is the same way people who are still procrastinating now would wish they started earlier too in 10 years upwards, if you take a look at the figures you'll see that it's still earliy compared to what we all hope it would be like in the next time years, if they picture bitcoin at $1m or above in 10 years from now then the investor who started recently would stop wishing they invested in the past but take their current investment seriously.
You'll hear people say it's not too late and they're right afterall cause if one could start now an hold till 10 years time when bitcoin probably gets past $1m then they won't even feel they missed the opportunity earlier investors of about 2011 to 2020 had cause they too would've made lots of profits in 10 years from now whether they're very aggressive with their investment or not.
It is scary to invest in something new for the first time. And those who can overcome this fear are the winners. Bitcoin is no exception in life. Could anyone have imagined that the price of Bitcoin would be so high? Maybe we still can't imagine what the price of Bitcoin will be like in the next five or 10 years. It may be beyond our imagination, just like before. Many people regret that they could have invested $100 at that time. I think people will regret it in the future too, when the price of Bitcoin reaches one billion, they will remember the present.