I don’t think there’s any point in pretending anything on a totally anonymous forum. Nobody knows you - it’s meaningless.
I live in a part of London where most people probably earn over £80k. I don’t know anyone around here whose DC aren’t in independent schools and those are £8k a term by secondary age. Most people have at least 2 DC in the schools - so, based on 2 DC that’s £48k year before anything else. To pay that you need to earn £96k pre tax. Of course, some people may have family help, I don’t know, but many do not. At the prep school level, it’s at least 70% SAHM (as am I). At secondary, that figure is harder to gauge because you have less contact with other mums, but it’s certainly not 2%! It would be at least half, I’d guess,
If you have a look on the secondary education boards - threads for the SW London independents and the 11 plus for all the various schools, you can see that there are many many people on MN in this demographic. They are applying for certain schools in this area and it’s a whole rigmarole that’s you simply couldn’t make up unless you were in it.
Salary may not even be relevant to the government statistics because many people (DH’s in the main I have to be honest) have founded and sold companies. They’ve been self-employed mainly, so income has been highly variable. For instance. my DH was one of the founders of a “.com” which sold for over £1 billion. He still works and employs around 150 ish people, plus others abroad, some of whom are on at least £150k plus. I know people will say this is a stealth boast, but it shouldn’t matter because this is anonymous. I have no need to make this up. I just wanted to say that people are probably not making things up on MN. If anything, they may be playing things down because they know the reaction they’re likely to get in here. In our area, someone like my DH is not particularly “stand out.” Not at all. He’s fairly typical. I know someone whose shares in a company were at least £250 million and probably more - his wife is a mum and she may be on here. I know several people who came into that kind of money. People will say I’m making this up, but I’m not. These are real people we’ve known since our earlier 20s and very normal.