Child labour :( Felt guilty

Child labour, employment of children of less than a legally specified age. Is that right? I mean is child labour only just illegal or is it morally insane? I guess its morally insane and i don't know why people can't stand against it?

A few days back, I gave my bike in the hands of a child for repair and he did that for a few bucks. After all this seems fair but suddenly my conscience raises a voice against me and I feel sinner than anyone else.

Even I felt guilty but this humanity seems to be doomed. We have just made the laws but no one follows them.