As an ex caravanner I must give my views!
Firstly... Can they not aford a proper holiday? Maybe yes maybe no,, but has anyone looked closely at some of these outfits? Well ... some of them are more luxurious than lots of peoples homes (including mine lol) and some cost almost as much probably. Then there are the more common sort (which I belonged to for many years)
We started off tenting because WE COULDN'T afford a holiday.
Then we progressed to a small caravan and installed all mod cons, slowly over the years moved up to a bigger one which had a seperate bedroom too! and all this on 2 wheels! wow we had some fantastic times and if we didn't like the area we moved on which is all part of the idea of having your own holiday home on wheels.
Also I have to say one of the biggest plus's was that as our daughter was on a special diet and in a wheelchair(all in the days when everywhere including hotels were not disabled friendly) and it was far easier organising meals and medication, maybe this applies to others too.
Maybe part of me is a rover lol.
As for holding traffic up ....... well round here I would rather follow a caravan than a tractor which are demons on our roads and they wont pull off! Even though the roads round here have special pullover places especially to aleviate this problem.
Or some dear old sunday driver who thinks that the national speed limit is 35 and when the go through a limited zone they drop down to 20!
At least when we were towing we had great fun counting how many cars we had collected lol and if the Q was out of site we would do the decent thing ( eventually) and find a lay by to pull in and set the poo devils behind to speed to thier hearts
content.
I have to admit I also get stuck sometimes ,, but then I think back and I have a little more patience, well! mostly LOL
If you are not or never have been a caravanner you will not understand the freedom of choice this brings in more ways than one.