[gerdesj]

"I estimate at around 20% the amount of drivers that really should be allowed to drive"

I don't know where you are but in the UK the driving test is pretty tricky. I failed it twice before passing and that was before it had the theory test added on. That was 30 years ago.

We all have our own perceptions of other drivers but you do need to try to think in their shoes. Today, whilst driving home I noticed a police car lights to the left and decided to indicate and move from lane one to two to give them room. The land rover behind me decided to undertake me and blunder through in lane one. Now the LR made a perfectly legitimate move - stay on track. They then undertook me (naughty). They did their thing and came across as wankers.