I agree someone on £35k does not take home £35k, however what they will have is:
Personal allowance of about £13k, meaning they don’t pay any tax on the first £13k they earn.
20% tax on £22k, which is £4.4k tax across the whole year.
Child benefit if they have children, depending on the number of children they have, this could add another £10k tax free.
Universal credit and housing benefit; I don’t know the ins and outs of this system, but I understand (from MN!) that people can claim additional income in some way, and will be entitled to varying amounts depending on their income level.
I used to work in social housing and the vast majority of people living in these homes received housing benefit. On average, rent on these homes was at about £200 per week, many of them located in zone 1 and 2 in London. I couldn’t afford to live in those areas.
i don’t begrudge any of the above for people earning £35k, as i imagine it must be extremely challenging to live on a single income of £35k.
All I’m saying is that in my view someone earning a gross salary of £150k wouldn’t be classed as rich due to the tax system and cost of living.