EDIT: That said, I do agree that if you get past a certain level of fluency it might be easier. And I suppose it depends on where you live. Cities are probably harder.
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.
There are exceptions when there are vested interests.
I also don’t think it is necessarily about respect or admiration. In day to day interactions, people just prefer to use the most efficient means available to understand and be understood. Like using English instead of a clumsy beginners level of Spanish.
Of course, but I can guarantee you that, at least for Dutch people, we have huge admiration for people trying to learn our language. Dutch is hard and the effort is appreciated, it shows a certain kind of respect towards the country and its people.
I can guarantee you that if someone at the counter gives the receipt and a foreigner replies with "Ja, graag" in a thick heavy accent she will be greeted with a smile.
I think that we switch over to English and the easy more default setting way too easily, this makes it hard for people to learn the native language because no one wants to practice with them.
After you reach a certain level people tend to be forgiving.
This is actually not true. As a Dutch person I have huge respect and admiration for people that are learning dutch and willing to practice with me no matter how cringy it is. Exactly the cringe is how you learn! I have a friend with whom I can hold a full-blown conversation in Dutch and I'm honestly in awe, he's a PhD student and took on the liberty of learning Dutch whilst many PhD students that are here from foreign countries (i.e. will be here for 5 years) never even make the effort. The effort alone should be highly commended.