But given there are an estimated 13 million disabled people in the UK, the purple pound – which refers to the spending power of disabled households – is big business.
I was reminded of this as Responsible Travel published the latest chapter in its manifesto for the future of tourism.
It contains further eyebrow-raising statistics: in the UK, 57% of UK adults with a disability and airports and lying difficult, while three-quarters of people with mental health issues say their disability has stopped them travelling.