Many of us OWM were once YWM and not useless since we passed OASC and had full careers as RAF pilots
I was landscape gardener before I joined, had never flown before and definitely couldn't ride a horse
Similar story. I was a VYWM (18) when I started at Cranwell but I had still managed (and indeed, had needed) to have a myriad of mundane weekend and holiday jobs since the age of 12 - most of which would have been regarded as very ‘unofficerlike’ I think.