BA should actually start requiring university graduation as an entry level qualification (Before you bite, I can think of at least one flag carrier that mandates this). We're always hearing, after all, that the job is more difficult than we think.
May I disagree?!
Some of the most rabid militants in our cabin crew are those who have such qualifications.
They are paid similar salaries to those they would get with their qualifications elsewhere but for a vastly better lifestyle. They are very much overqualified for the actual job, often only intended to do it "for a couple of years after Uni" but stayed. They have no chance of promotion/change, with the result that several years on they are now thoroughly sick of being treated as just another steward/ess by the airline and passengers when they think they are something better.
They are often the ones who think that BA crew are the best in the world, that LGW crew are of a lower grade entirely and wouldnt deign talk to a loco crew member.
Cabin Crewing (or indeed piloting) does not require a degree level qualification. Many do have one and many make the best use of their talents with businesses etc outside BA. Most dont and are frustrated or just plain bored.