The demographics attending games are changing but how did this work before, did most people stop attending games once they were in their late 30's, if people live longer and keep attending games how is it possible to have younger fans attending without increasing capacity, is there a large grouping of fans in late 60's who might all stop attending in 10-15 years time.
And as ever having adults paying full price is most profitable for the club although I guess this might change if ever growing proportion get the senior discount.