People have an erroneous idea that they are safer than smaller cars. They are not, they are less stable and are more likely to kill any person they hit, than smaller cars.
There are few situations, if any in this country were other than those professional involved with land management need to drive off road - and they drive good old fashioned land rovers or their modern equivalent. DS is an archaeologist and some sites he has worked on have been pretty remote and he has always managed with just a family saloon car.
These Chelsea tractors also have minimal luggage space, we have always run estate cars of various makes because we do need carrying space.
I suspect, except for a few who have a specialised need for such vehicles, it is entirely a question of machismo, or as we say in this household, short willy syndrome.