My own position: single, no kids, 53, no mortgage, no loans, no credit card debts, etc. Essentially I owe not a single penny to anyone and don't have expensive tastes.
Salary £96k gross but I net £6.1k per month as I have a very high tax code due to my pension contributions.
Of the 6k net, I pay £2.5k per month into my private pension and £1.7k per month into my ISA (making the full £20k ISA per year).
Bills, food, clothes, car insurance & tax, socialising, etc., only comes to £1.1k per month, so I also save the other £800 or so left but will spend that on holidays, car & home maintenance, etc.
However... I have a colleague on pretty much exactly the same salary but who will net more like £5.4k as they don't pay extra into their pension. They're married but are the only earner in the house and they have 2 DC, a mortgage, etc. etc.
I would be surprised if they're able to save very much at all from the same gross salary.
There is no point comparing yourself to anyone else, OP, as everyone is living a different life.