The problem with Dutch people is that their English is, all else being equal, unusually good compared to at least most of mainland Europe.

So whatever the variable (city/rural, expat/local, etc.), you're very likely to run into a Dutch person who is fluent in English, and usually fluent enough where it's not even a matter of 'a chance of practice' for them, just a matter of avoiding mutual frustration.

At least when you're talking to someone who wants to practice, there's a chance they'd still prefer or revert to their own language. With lots of Dutch people that's not an issue.