Lil'Wayne

What do you think of parental monitoring software?

We have all heard of it at one time or another, and i can’t tell you how many times i have seen questions about it on yahoo answers, but what do you think about parental monitoring/control software. Do you support it, what age groups do you think it should be used for, and to what level. For example do you think it is ok to monitor kids without them being aware of it (with key loggers and other spy software) and do you think it is ok to put time restraints and other things of that nature on a child’s computer? And what do you think of old fashion parental blocks that restrict use? I’m just curious as to what others think (please put if your a kid or a parent if you can.)
For people who are currently using this type of software do you ever find it interviews with your kids schoolwork? I have heard that one a lot of times. Anyway just put down what you think. I personally don’t believe in them because of the schoolwork issue, and i personally think most kids can just get around it. But whenever i try to help someone with a parental block issue i always take criticism from other users that are upset i helped them out. So i just wanted to know what the general consensus was, and why these people seem to get so upset when i give advice. For example i answered a question the other day about someone needing to get around parental controls because it blocked wikipedia, which they wanted to use for homework. So i told them how to temporarily get around it because i used to be in the same boat. (when i was little i had time restraints, and i could never finish my homework before time was up. it made school difficult.) Sorry for making this so long, but put your honest opinion.
ps: sorry for the double post. I meant to post here but it accidentally got put in security as well.