When the market falls, many people will leave the market, and when the market picks up again. A lot of people who left the market will come back, and there will be a lot of new investors entering the market. Now the Internet is very popular, and a little information can be exchanged globally.
Only those who will leave are the people who have a lack of experience on how this market works and their numbers are only small compared to those who are already experts. Experts don't leave but they will be happy and always looks forward for the market crash because they can buy again at a discounted price.
There's no guarantee that those newbies who leave will come back especially if they lose big. That could cause them a trauma and think cryptos are too risky but they are not a loss to us and as you said, there will always be new people that will enter here. The internet is now popular or now more accessible. People should use that to extend their knowledge and not for useless things.