A friend told me tonight that her and her partner have decided not to have kids, mainly because they can't afford to. Even though they're earning £102k a year between them.
Just for background: they own a 3 bed flat together with a £1000-ish per month mortgage (at least she mentioned that's how much it was a year ago) and they aren't big spenders, not into flashy stuff, quite homely and humble. She's very eco friendly/minimalist and buys stuff second hand when she can. So I don't think they're frittering their money away or anything.
Can you really not raise a family well on £100k a year? They do live in London zone 6.