He no longer experiences the full range of life, the pain and joy of reality of night and day. He sits focused in front of a computer screen or television screen much of his life in a controlled artificial environment. As modern man divorces himself from reality, he no longer knows the relationship between his experiences and reality. Hence, he is dependent upon the gurus of the establishment to tell him that there are differences between men and women. And if they lie to him, and for instance, tell him that homosexuality is a normal event in nature, he doesn't know better and believes the lie.
Children have to be introduced and indoctrinated into artificial worlds.
The children that Christ bragged about to his disciples were models of innocence. Even in Christ's time, mankind was busy trying to put their vain imaginations to work in building artificial worlds, such as their religious rules, their idols, and the artificial rich life that a few wealthy had as the results of having other men as slaves. Modern life corrupts our enjoyment of reality. We filter our perceptions through our manmade filters. Later he will filter his experiences through a manmade filter, and prefer the expensive store bought toy.