Q. How can God give children to people and then let them abuse them? Whenever I read about child abuse I always ask myself why God did it.
It's not wrong to question God – not if we're sincerely seeking answers. (Unfortunately, some people aren't really interested in getting answers to their questions about God; their “questions” are merely an excuse to keep him at a distance.)
Evil isn't just an illusion or something we do out of ignorance. But evil doesn't come from God, and we shouldn't blame him when people do evil. Evil comes ultimately from Satan, whose goal is to oppose God in every way he can. Satan is an evil, powerful spiritual being who does everything he can to deceive and destroy us.
But evil also comes from within us. When we do something evil (such as abuse a child), God isn't to blame for it; we are.
Does this mean we can never break free of evil? No – because Jesus Christ came to free us from sin's power over us. Commit your life to him and ask him to forgive and change you.