There is a certain attraction to gaining you Command in a large jet airline in your 20's and you need to have been in Ezy/Ryr to have achieved that or to be able to achieve it. Don't discount that factor, it can set you up for life.
I don't think the pool of SFO's will run dry. There was a massive spike of recruitment circa 2006 which must now be getting close to being ready. Then there is the previous bad experiences with DEC's (LGW banzai approach etc).
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