To the poster who dislikes overtaking and believes it is dangerous. Do you not consider being stuck behind someone refusing to go near the speed limit on a clear open road with clear long views ahead as a reason to overtake? Are you happy to sit behind said person for dozens of miles even if it means you will now be late for wherever you are going despite there being ample opportunities to safely overtake? If so then perhaps you need to watch the driving instructor ‘Ashley Neal’ on YouTube.
I'm familiar with him, I watch him too! As he says, he doesn't often overtake - and uses the Safe/Legal/Worth It formula, and quite right too.
The definition of "safe" is relative. Driving is not an activity which has a just culture, and if overtaking were possible in fields like aviation or railways it would be a very rare manoeuvre indeed. I'll use my judgement as to whether I overtake - of course, I overtake cyclists (safely), and very slow moving vehicles where it's justifiable, but to be honest if I can do 60 on a road I know well and someone is doing 55, I'll just sit there.
Once you move onto the other side of the road your personal risk and the risk to the person you are overtaking increases by an order of magnitude, and compared to where you were before, doing 55 mph, yes, you are now in a comparatively dangerous position. Your speed is increasing, you are now steering consciously, you are more mentally loaded and target fixated with mirror and signal use, and overall mitigating the risk of the overtake. This makes you further vulnerable if something happens during that overtake. Someone doing 55mph instead of 60mph for ten miles will cost you sixty seconds of your day, which is not a measure of time I value so strongly to consider overtaking.
Your appetite and tolerance of risk while driving - and understanding how risk is amplified very strongly by small changes in choices you make driving - will be informed by your own experiences. I can say with some regret that when I was younger I lost a friend in a driving accident (I wonder who here from the old MSTS scene remembers Jamie Bowey?), and another friend wrote off his car while overtaking and going into a ditch.