I guess it can't be helped, many ICO were turned into scam projects and investors lost their money.
Once we see something wrong in some ICO, we will say that ICO is scam which actually doesn't like that.
My suggestion is, we must take our time to do some research and then we can say it scam or legit.
In this market, the investment in ICO projects is the most risky and most are projects that are not well known. I think at this point investing in ICO is unnecessary and we should only choose the available coins to make a high profit because in the past year many good projects are being forgotten and that is Good opportunity for you to start investing again. In my opinion, ICO and IEO are all forms of calling for capital but the IEO will be much better because IEO projects are often protected by exchanges so it will help investors a lot.
Although this may be very sad, but I really accept what you say, ICO has too many risks, good projects have become too rare on this land, continuing to invest is just that we are trying to risk and gamble with our money. Instead of having useless gambling and sacrificing so much money, we should invest in projects already available on the market as you say, choose the right time and invest, they will bring us appropriate profits, IEO is another style for investment but I recommend not to join now when the request is too difficult