If you’re worried before you start, that should be a big alarm bell.
Fees typically rise 3-5% per year and you have to compound that when you do the calculations. Most salaries are not rising at that rate, so unless you’re in for big pay rises, it will get harder, not easier.
The reality, is the vast vast majority if the population can’t afford this, and you probably are in that category.
Those on lower (relative to those paying fees, not the population overall) who afford it off a salary of under £80k, are often managing whilst not having a mortgage or housing costs, just 1 child and/or grandparent or bursary help, unless they are living in much much cheaper areas of the country where fees are significantly lower.
There is a difference between stretching yourself, but you can still afford a cheapest holiday, manage to replace the boiler or car, and your child can do things like go to birthday parties with presents, go on school day trips which cost extra, buy the uniform and perhaps go on the odd residential cheaper school trip and the alternative. The alernative stretching yourself for some people means no holidays for 5 years, living in fear of a big bill like the need for a boiler, the house going to rack no ruin and an inability to join in socially with anything due to costs. Some people do out themselves in this position too.
I too wouldn’t rely on a GP saying they will help out unless you’ve had detailed numbers conversations. They might not grasp the size of the fees or have worked out their own finances. Without involving an accountant who can say that yes, they can afford X amount without impinging their own lifestyle, including paying for care if it’s needed, it’s not viable to rely on GP, so you do have to be able to fund 2 yourself. And you do have to operate on the basis you have 2 kids not just 1.
Lots of people get to this point. They look and love what they see. They knew it would be marginal, but having looked and seen, it’s then hard to walk away....but after some serious calculations, loads do this every year because they realise independent senior education is a truly luxury product, that they simply cannot afford. It’s a pipe dream for lots and some talk of bursaries and it being more affordable than people think and families in low incomes being there, draws them into looking, but in reality it’s not affordable for the vast majority.