Wheelchair vs Pushchair

I've been very wary about wading into the debate that was recently addressed in the Supreme Court regarding who should take priority on public transport: wheelchairs or pushchairs.

"The case was triggered when Mr Paulley, from Wetherby, West Yorkshire, attempted to board a bus operated by FirstGroup which had a sign saying: "Please give up this space if needed for a wheelchair user." 

Mr Paulley was left at the stop because a woman with a sleeping baby in a pushchair refused to move out of the designated area when asked by the bus driver. She said the buggy would not fold.
He had argued FirstGroup's "requesting, not requiring" policy was discriminatory."  BBC News website

Now in an ideal world there would be room for all and this wouldn't even be an issue...but it is.