@redmage Good point but we have to remember, this kid is anything but a kid, his is an old man. Even if the people see him as an 5 years old, all of his accomplishment from bonding the giant ores with his town and shows exceptional magic and intelligent, should people realise that his is mature enough to deal with criticism. It's not a good comparison.
But if my 5 years old son were to come up to me and shows a painting he made, I would say something along the line, "It's not bad for someone your age, I think you may have potential to be much greater than this ". Anything but lying to me own son, because even the smallest lies could lead to an untrustworthy relationship and the kid will remember this lies in the future, and I may develop a lying habit to deal with my son. I would not say that his painting is garbage and his is talentless.
I want to be remember as honest and reliable father. And I want my son to treat people genuinely from learning from me at an early age. Learning to cope with criticism is important. In the end, which one would you rather have, the uncomfortable truth or the pleasant dishonesty. There is a different between being nice and being kind.