Many of us has a big regret by not believing in bitcoin way back on year 2010,if we only believe that bitcoin will be having a big value this time then we can get huge profit if we buy and hold it, but i think its never too late and it isn't over yet, bitcoin will surely rise in the future and we need to prepare to buy and hold today avoid regrets.
Regret will only occur for those who initially did know about Bitcoin but had no intention to enter or invest in Bitcoin.
But for those who are new to Bitcoin and value it, it will be a real choice, whether they like it or not. If you are still in doubt, of course no one can force it.
and it's never too late to get into Bitcoin, whenever you can enter the price and the price won't always go up. Bitcoin prices fluctuate and everyone can enter at a high price or at a price that is quite affordable or cheaper.