aghastpumpkin said:
As far as I am informed, it is Illegal to take pictures of children without parental consent. It is also immoral to take pictures of peoples houses and personal property. There is, of course, a certain amount of leeway.
There aren't any laws against photographing children in public without consent, however, you've got the parents to contend with and it's not something I would attempt to do on the sly! Also, you are not easily going to sell any to image libraries without some kind of release.
I take loads of pictures of kids doing activities like feeding the ducks at the park. You wouldn't catch me hanging around a playground because of the obvious implication, but you couldn't be arrested for it (you'd be more likely to get beaten up in London!).
I think you're being a bit OTT with the word "immoral" to describe taking pictures of people's houses and property. There's very little which is actually public in the UK and taking pictures of individually or corporately owned properties - offices, houses, cars, whatever is about as average as you can get. It's nice to ask of course, but, it isn't exactly a requirement - it is after all, normally a compliment.
We all see things every day and it's our own responsibility to make judgements about what is morally acceptable and what is not - the law is concerned with protection, not morality. We could all make money taking pictures of celebrities making arses of themselves or whatever - if you don't like it, don't buy it or do it! It's a not a free country, but there's a good deal of flexibility here.