I think a good pilot listens to the RT and builds an 'air picture' in their head. Sure, some don't think outside their own flight deck/cockpit but that's never going to change. Mixed languages doesn't help that practice.
Ahh the voice of reason. Well-said Number2 (must be your age
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It's quite amusing (and sad) that once anything gets mentioned regarding language a number of folks start blaring the horns and tooting the trumpets for a rally to the cause of protecting the language. Common sense and reason get lost on what is a simple and fair point of flight safety. A point I might add that be it big or small still adds up to a safer environment for all concerned.