most of them aren't really at fault. they are just poor newcomers who entered a big market and were suddenly bombarded by a huge wave of advertisement which were promising them riches beyond their wildest dreams so they ended up buying a ton of useless tokens which have been continuously losing value
But it's never late to stop. And is it really that hard to find coinmarketcap.com and figure out the best investment opportunities before investing money? It's weird, but it really seems to me that some people who took part in ICOs and stuff might not even know that there are well-known and reputable cryptocurrencies out there that don't involve that much risk. Others probably invested out of greed, thinking that the time to invest in the giants is missed, so one has to go for hidden gems.
I think that now the situation is as simple as it can get. Top cryptocurrencies have already shown what they are capable of. The market is still very much down, even though it is showing some exciting upward movement sometimes. If one wants to invest in cryptos now, it's a great idea to invest in Bitcoin and maybe a couple of others from the top-10. There always is and will be a risk, but I agree with the op that now is a good time to join.