I never understand this tutored v not tutored argument. Every child is tutored.
Sometimes by an external tutor the parent has engaged; often by the diligent, repetitive coaxing, support and assistance of a (usually, highly qualified) parent. Or two parents. It makes me really
to hear an Oxbridge-educated SAHM brag that her child "never had any tutoring". Bloody well did! They had daily tutoring from an omni-present, highly-educated parent, personally invested in ensuring this child passed!
I have 2 children who both sat and passed the 7+. DC1 had the superior luxury of having me at home f/t in the year before, assisting with daily homework, stretching dc when I could see that concepts were solid, singing times tables in the car, setting fun writing tasks, like letters to Santa or cousins, reading lots of short stories..plus the obligatory Bond books, a year above their calendar age.
When it was DC 2's turn, I was back at work f/t. DC did homework with the nanny, who is fab but it was not her job to tutor my dc. DC 2 went to a tutor for the term before the 7+, once a week, for an hour for 12 weeks. And had support from me at the weekends.
It was fun. DC was certainly not "crushed by tutoring." A good tutor will inspire your child, never crush them.
Luckily both passed, but I'd say, without a doubt DC1, tutored by me rather than an external tutor, was far better prepared for the whole experience.