Where did the nanny chooses 2 weeks holiday, parents choose 2 weeks come from?
Did this perhaps pre-date 2007, when holiday entitlement changed?
This is something from contracts but do contracts now include it?
Looking at a specimen NannyTax contract, I can't see it mentioned. Instead there is "The Employer will try to co-operate with your holiday plans wherever possible subject to their requirements."
Is it reasonable for employees to get half of the holiday as their choice, or should they get it all their choice? Or indeed none of their choice - none is really their choice as employer has to authorise it, so if it is not convenient for the employer they won't authorise it.