I cannot imagine any other nation than the Brits recommending avoidance of (bits of) G airspace. It cannot get more ridiculous unless class H is introduced. Surely class G means "no guidance whatsoever, all are up to themselves and good luck to them"?
Jan, no one is recommending avoidance of class G. All MATZ and CMATZ are class G but what's the hardship in calling a busy mil base and saying 'Hey Im Here' ? How long does that take? Does that not make sense? Would you turn into a one way street in your car without looking both ways? Or cross the road at a Pelican (or whatever they are called in your country) crossing and not look both ways? Or just walk blindly on knowing the light is on green therefore it's safe to cross?
Flying to me is about mitigating risk and it seems bonkers to me not to press the transmit button and say a few words.