Love your comment on the railways MaizieD - as I suspect you'd expect.
It started me thinking about other aspects of our community (sorry country) we think of as essential services that support its existence:
Electricity
Gas
Water
Telecoms
Rail transport
Health
Social care
Waste disposal
Defence
Education
If we consider a system or service essential to the community - should it be left to market forces to survive or fail, or should we as part of the community share in its ownership and operation?
We have mostly sold off many of the essential to life services - water supply, energy generation and distribution, and many aspects of health and social care. Waste management is now another area that has been picked up by the markets - and yet our electronic waste finds its way to a slum and waste dump in Ghana - why don't we deal with the consequences of our own social activity in the UK.
On the rail front, it has, naturally seemed incongruous to me that we complained about funding British Rail, and yet are happy to support a failing train operating company with heavy subsidies. We pay out a lot, but get nothing back, not even a say in how it operates in the best interests of the community.
I doubt that they UK could be described as a "mixed economy" as easily today, since on the whole, it seems "market forces" dominate.