Thanks for your opinion and advice but here is why I disagree and feel that my naivety has been in trying as hard as possible:-
last year I made give or take £55k and took home about £2900 a month as had company car to get to work so tax code knackered and car for the mrs on work scheme so she could tottle around/ get kids to pre-school, etc, Mrs worked 16 hours a week and bought in about £500. Child benefit was gone as the company car BIK took me over £60k so total incoming monthly was £3400.
Been playing with entitledto.co.uk calculator and the results are startling:- If I take redundancy I will get circa £6k earn £25k/30 hours on 1250l I would take home £1720 and if mrs takes redundancy she will get about £2K and then stop working we would qualify for £1300 made up of universal credit & child benefit = £3020 per month.
So all in all about £380 per month worse off but with a much better life (lower bills - food at work, fuel, car tax, ins, etc) and possibly £8 grand in the bank.
So back to the naivety thing - I'm not so sure.