It's much safer to stick to large, reputable exchanges that have been trading for years than going near a new and unproven exchange.
True, but that's directly the main obstacle for most noobs. Reputable exchanges generally have strict KYC/AML policies in place, and they are firm on not listing utter garbage coins.
It's not for nothing that exchanges as Yobit exist and continue to gain popularity as the larger exchanges become too much of an obstacle for people. It's greed over common sense in this industry.
Another effective way of attracting noobs is advertising through Facebook and whatnot. That's where most of the worst noobs come from, and also explains why they don't know what crypto is about.
They are here for a sweet payday, but all they get is a very expensive booty smacking treatment.