Feels almost symptomatic of the wider society at times. If a rider isn't the next child prodigy and pushing towards the GPs by 18/19, they get almost written off. Sometimes they end up quitting. As you say, you need riders who are, ultimately, just average.
It's even more concerning when you look at the ages of some of the 'mid-level' Premiership riders now - Klindt, C. Holder, Harris, Lawson, King, Masters, Iversen - all have passed or are edging towards 40. What happens when we lose them?