Giannis played against Devin Booker in the championship, a guy drafted at 18 years old. 100% of the teams in the championship drafted an 18 year old. And both were their teams’ best players. Percentages are fun.
Point is simple. If you pass on players because they are 18, you possibly pass on the very best players in the league. That would be idiotic. If last year wasn’t enough proof, I don’t know what to tell you. Yes, they will take time to develop, yes it is risky. Each situation has to have the risk vs reward weighed.