Those likening him to ronaldo at 18 are mad, and setting him up for a fail.
Why? Ronaldo at eighteen wasn't anywhere near being the best player in the world, he was very raw, often frustrating and put in and mixed bag of performances, some excellent, others not so good. Even at that age you could see his natural talent, flair and potential shining through though and don't think it's doing anyone an injustice to say the same of Zaha who imo plays a lot like the teenage Ronaldo and shares many of the same attributes. Why is it mad to point this out? Nobody's saying that Zaha will go on to be a good as the modern day Ronaldo.