In 20 years, people will either be saying Remember when you could buy bitcoin for only 3500? or Remember when everyone lost their minds and spent millions on useless internet money?
One day cryptos might boom in such a way that basically everyone who didn't invest in them will become poor
over time the growth of digital currencies will be increasingly recognized by the public, most likely the value will increase in the next 20 years. the next generation will feel this modern technology, and of course they will crave to buy cryptocurrency at a low price because in the future cryptocurrency value is very valuable.
for people who can't invest in cryptocurrency, they will definitely regret it later.