DD's daily nursery fees was dearer than her daily school fees. However she didn't go to nursery full time so that did reduce those costs.
skiing trips, extra curriculars, laptops, iPads, uniforms
Ski trips and expensive trips are never compulsory. Skiing, for example, only a small number per year group went - dd never did, she doesn't do the cold! Other trips were no more frequent or more expensive that the state schools.
Extra curricular again were no dearer than the state options, and were optional.
No iPads or laptops required by primary or secondary, though I would say that most secondary school students benefit from having computer access at home for most days.
Primary school uniform was pretty dear but there was a fantastic second hand shop which everyone used - even those with tons of money! Secondary wasn't really different costs to many local schools.
Most decent Indy secondaries are 9-14k a term
Maybe in some areas but most definitely not here - South Yorkshire. No where near that at all! Was around £4k a term, and her secondary wasn't really much difference in price to her primary.
There really wasn't any competitiveness over houses, horses, holiday homes, etc at DD' schools and they did have children from a range of backgrounds. You only knew if a child was on a nursery if they told you, especially as there were a range of scholarships and nurseries for all, and not just linked to finances.
We only have one child so obviously affordability is a little easier when that's the case.
You get a lot of myths about what life is really like in private schools, but much of it is a very different experience to what we ever had in DD's 12 years at schools. She is in a state school for sixth form, because of subject choices mainly, and tbh not much has changed - well apart from me and her dad not forking out the fees every month!