You missed the point - it was about ISA saving disqualifying you from benefits
*during your working life*. So you having to spend your "pension" savings on living expenses before retirement.Besides I wouldn't call living on means tested benefits in retirement "grim", you won't be rich, but about 110 a week plus all rent/mortgage/council tax paid plus winter fuel allowance, plus free local public transport, free prescriptions/dentist, plus other bribes... I know a few pensioners living very comfortably on the minimum amount, or very slightly above. A family with a single earner on an average income will probably be worse off.
Exactly - for people on low incomes saving in a pension could result in significant sacrifices during their working life for trivial benefit in retirement.