She is 7. Until now she only has playdates with friends whose parents we know well, but now she has a bigger group of friends. Some of these friends live on local council estates. One of these estates has a particularly bad reputation (drug problems, unemployment, high crime rate). When I drove through it recently I noticed kids playing out in street, groups of youths standing around smoking and drinking, big dogs in studded collars roaming around (no muzzles), rubbish everywhere etc. I don't mean to sound judgemental but it's not the sort of place we want DD playing or walking around.
We're happy for DD's friends to come play at ours, and we want her to socialise with children from social different backgrounds... but recently she's been invited on several play-dates on these estates plus a party. So far I've made excuses, as I don't want her playing out unsupervised and TBH don't like her going to houses unless I know the parents and trust them to keep a close eye on her. Even if I chatted to these mums at school gates and they promise to supervise, I don't want her going to houses where anyone is smoking, drinking or teenage siblings are coming in and out with their mates, or any household with a dangerous dog (there are a lot of pitbulls and rottweilers on the estate), but I can't really ask this.
How do we politely decline these play-dates without offending anyone? Is there a way we can have DD's friends at our house without her going to their houses? And what do I tell DD, without mentioning it's because of the area her friends live?