Having kids with overflowing curiosity is fun as it means your kids are keen to learn anything s/he hasn't known. And it may mean your kids are geniuses. Read some famous scientists and well-known figures who confessed to be quite naughty, experimental and 'annoying'ly curious when they were kids. But what if your kids are experimenting with the web, viewing web pages full of porn images they mustn't see for example? I'm absolutely convinced you'll never want such a degrading disaster to happen to your kids.