Also reflects that the UK has an ageing population.
Not as bad as say Germany where despite immigration the working age population is forecast to drop by 40% to 6m over the next 20 years.
But currently the UK has circa 20% of the population of over 60 which will increase to 25% over the next 15 years or so.
The US has somewhat better demographics, but it's suffering some of the same graying (and indeed emptying) of in-person support for its legacy sports. Surprise surprise, decades of warnings about pricing young people and working class people out of their passion for the game were right all along!
A notable exception is soccer, which is (for the moment) quite a bit cheaper. Imagine that.