I was trying to average it out across the low COL areas :).
But here in the Bay Area, for 2Y+ you can find daycares for that amount. Also home day cares are also an option and they tend to be between 1.5-2k a month.
When you're looking for <2Y care though? That fucking sucks, because of the (understandable) ratio laws, prices are high 2ks to 3k here.
That's assuming you do not want to save anything, or a medical emergency does not wipe you out.
Or a car crash. Or any other utterly forseeable common event.
Again, nothing to do with struggling to make ends meet. By going further with your argument you aren't fully comfortable until you can cover any possible event that might happen, since a dire enough event will exhaust any possible amount of savings you could have unless you're a billionaire. Medical emergencies and car crashes are covered by insurance for nearly everyone, if you make that much money I would think you have appropriate policies in place.
Ah I just realized you're in the UK. I'm also from the UK but live in California.
Now it all makes sense! I agree that 4.5k after tax is fine to live on in the UK. Here in the US where a carton of basic eggs cost $6+, a box of standard brand milk costs $4/5, that $2.5k is going to disappear pretty fucking quickly.
I was astounded at how expensive it was here. Even in London, you could buy Warburtons for £1.30 or so back when I moved a few years ago. 1L of Cravendale (I liked the good stuff) was still £1 IIRC. Now it's like £1.30? Still, way cheaper.
I don't think you have kids (especially infants/young ones) because in a high cost of living area, 2.5k a month is HARD. You can do that in Europe, not in the US.
Those situations also happen, they're not black swan events. My current medical plan for my family has a deductible of $3k. Every year we end up hitting that number. That's excluding the actual premiums which are deducted from your pay. Do you have ANY idea what you're talking about?