Try French branchlines which are subject to frequent substitution with buses or even closure with hardly any notice
What a load of wibble this thread is.
Train was introduced for school kids as local authority tender. Train is a 2 car 156 with a nominal social distancing capacity of approximately 70. School kids number 130 approx and need to be carried as a contractual matter, with social distancing maximum not applying if the train is dedicated to their use.
Thus a suitable replacement for the train is provided for the handful of others who may wish to make the journey.
In this case, while unusual in the UK, the train is effectively the same as a bus for scholars available to the general public, which are pretty common in some areas and also I believe currently not available to the general public.
Then we have 3 pages complaining about it, magicking up bikes, dogs, and theoretical sit ins in the bleak Highlands while undertaking a rousing singalong of "we shall not be moved" while the driver and guard lean on a fence and drink tea.
Rarely have I come across more obliging people than rural Scots. I am quite sure that if you turned up with a bike or a dog, and were polite about the matter, one way or another you would be sorted out.
It is what it is, just get on with it for goodness sake.