Many people are regret because they are late to join into trading.
That's maybe because it's bearish now, if they will only think that the price will not again recover, then they should regret but they are wrong.
They don't decide e early, so they don't have a chance to make a lot of money from trading.
only few know bitcoin in the start and they are also taking risk as they don't know bitcoin will rise like this.
They are betting on its potential and the future's price.
But I don't think that they are too late because as long as they can get profitable coins, then they could still make a profit and I am sure that in the right time, they will have the opportunity to make a bigger profit too. But as I said before, there is not too late to join in the crypto, but you will be too late if you don't decide to join.
It's never too late actually, they just have to change their mindset, IMO, we are still in the early stage.