Yes, just like the rest of society! Let's be clear here: it's not BA's responsibility to afford their crew a nice car and their own flat in a crew preferred suburb such as Richmond, Chiswick, Kew, etc. Just because they have in the past it doesn't mean they are obliged to in the future. One look at the trains or roads into London at 8am will reveal to you that most of the people who work in London don't live there, let alone those who work on the outskirts of the city. If you need a car to get to the job you want to do you have to buy one, or move closer, or buy a train season ticket. That's the way it is in the real world, it's called personal investment in your career. If you are not prepared to do that then find a different, more convenient job. That is the way the real world works outside BA. If people cannot afford to do the job they won't.
PS Do you have a source for that average cost of car insurance? Nobody I know is paying anything like that except for under 25 males.