Clocked up over a million miles in 50 years of driving. It covers every type of vehicle and country, up to 12 tonnes, in UK, EU, plus all continents. Both sides of the road in LHD & RHD vehicles, so probably spent 30,000 hours behind the wheel
Standards are certainly worse than back in the 70's and I'd put it down to
Primarily me calming down by the 80's and getting enough hp to easily kill myself
Many more cars, which leaves less room for error
Big change of driver profile across different groups of society
Pressure of life and in car distractions that prevent focus on the task in hand
Feeling of protection that modern cars give makes people feel less vulnerable
So my pet hates:
Tailgating (but we don't even compare to the Spanish where it's a national sport)
Mid-lane cruising when adequate space and time to move in and nothing coming up to pass and the undertaking it causes some to then do
Not indicating for non standard manoeuvres like going fully 360 around an island
Stopping at traffic island when there is no traffic from the right or anywhere near
Texting causing veering across lanes
Braking for speed cameras when they are average speed. What part of average don't they get?
Joining motorways assuming that traffic will somehow vanish as they join
Replacement of MSM discipline with their variant of manoeuvre first, then optional signal and look
Lack of any spatial awareness by drivers of what's happening around them..