Never Talk To Strangers

We’ve all been told to never talk to strangers and we probably all said the exact same thing to our kids. Easy to remember, right? Or maybe not so much. Especially when we also teach the kids not to be rude. So what is it now? Which one to consider? Should they be polite and answer questions as long as the person asking seems nice and polite and actually not dangerous? Or should they follow the don’t talk to stranger rule?