I don't think it's childish.
An ex-colleague of mine lasted four months in Brighton on a PGCE.
He wasn't the idealistic 'quitting' type.
It's ironic isn't it, when UK primary and secondary education is such a a successful brand.
But yes...it's easy to see what one should do...another to do it.
I concede.
It did seem like you had a real love/hate relationship with Mandalay.