That isn't true. When I was learning to drive a car, 33 years ago, my instructor took a lot of trouble to emphasise that I should pass parked cars "one car door's width away". He wasn't a cycle trainer. Of course, it was unnecessary; as a motorcyclist for 3 years before that, I had already had enough experiences of swerving for car doors to learn about that.
There are still occasions where I forget to move out, or can't because of traffic, when approaching side roads, and I can't count the number of times I've had to brake suddenly because a car was approaching the junction too fast, and even in some cases overshot the junction. That is usually when I'm in a cycle lane. Incidentally, I find probably 25% or 30% of motorists block the cycle lane when waiting to turn out of a side road, so I have to negotiate my way out of the cycle lane.
Your experience is very different to mine. I certainly have far more problems with motorists doing stupid things when I am in a cycle lane than when there isn't one there. See the links that I put in
this post.
Cyclists like me? 18 months ago, I was nearly 15 stones in weight, and I though that 8 miles was a big bike ride! To cycle the from Parsley Hay to Ashbourne and back on the Tissington trail was an enormous expedition for me. At 54, I have bad osteo-arthritis in my left hip. 12 months ago when I started commuting by bicycle again, I was
always riding cautiously at the side of the road in the gutter as I thought I should be. I experienced so many left hooks that I couldn't count them. On one occasion, in
a cycle lane on a left hand bend, I was nearly crushed against a pedestrian fence by an HGV that came up behind me in Farnworth (I actually climbed up the fence to escape).
It was after that last incident that I resolved to read up about how to cycle safely, starting with the Internet, then reading CycleCraft, and looking at Gaz's videos and other stuff. These are personal experiences I'm talking about here, not theories. I don't have quite so many brown trouser moments now, just aggravation from motorists who think I should be in the gutter, especially when there is a crappy cycle lane there. I still do often feel intimidated into using cycle lanes that perhaps I ought not too, particularly over junctions, and that's when I have the remaining scary moments now.
I used to complain that there weren't enough cycle lanes, and that the cycle lanes always seemed to end just where you needed them most, and so on. Now I hate the damn things most of the time. The only places I like them are when there are separate cycle paths adjacent to fast major trunk roads and dual carriageways - like the one by the A59 near Southport.