It's not the actual trend, the ICO hype ended in the year 2018 so you're 6 years later to make use of that trend. The dynamics of the market changed drastically and the hype fades away very sooner than before so if you want to invest for long term then choose something that existed in the long term for example Bitcoin, ETH and LTC.
ICOs, IDO or IEOs were a very good and effective ways and mean through which alot of devs raised money to start their crypto business and develop their product, but unfortunately, like everything else where money is involved, this means was abused, scammers utilized it, which lead to alot of scams, people losing their hard earned money, and rug pulls, failed projects, all this lead to investors losing their money, this was why the Ico, ieo, IDO, and even launchpad sales hype could not be sustained.
Imagine investing in an Ico and believing you are buying at the possible cheapest price, only for the token or coin to enter the market, and the price falls 99 percent below the Ico price, which means those who did not participate in the Ico are now luckier because they get to buy at a far lower price, this has been my experience and the experience of many other countless number of times 😁.
This industry have been through a lot of growth and restructuring, and happy how things have evolved.