Right advice, I agree that until now there are still many good ICOs that have to analyze properly because it is true that the friend said above that bad possibilities could happen, but it does require a high degree of confidence that what we are going to do is right, so even if it happens mistakes we can accept with reality.
but at times like this it is certainly not wrong to invest in bitcoin because it is indeed an increasing trend and it could be more than in the past.
Until now the good ico is still around, but very hard to find. Looking for a good ico like we look for a diamond, it took us a long time to find it. Cryptocurrency is not just about ico, there are many other ways to get money, As you say, For now investing in bitcoin or altcoin is safer than investing in ico.