'The state' doesn't have money of it's own. When you say 'the state' should pay, you are saying individual tax payers should hand over more of their salary in tax to pay.
That's an individual, who will have less money to buy things for their family, because instead the money they have earned is given - by the state - to someone else to spend on themselves instead.
What happens to the people who currently get pension credit if they can no longer receive it
I think that like most European countries we should have a very minimal state pension which everyone is entitled to and is not means tested (in most places that universal pillar is about the same amount as the UK state pension) and a second pillar of state pension which is based on how much you've paid in over your working life. That's fair - and in line with what NI was set up for.
If we did that, we could change the the triple lock to double lock for the universal pillar. The reason for the triple lock is because our pension is so low and they wanted to increase it - but it's appropriate and in line with other European countries to only increase the contribution-based second pillar (which we don't currently have at all)
I think that working age benefits should also be cut right back. 10 million people are on working age benefits - that"s 22.8% of the working age population. There's no way that 22% of the population can't work / can't work more hours.
The UK is appalling for disincentivising work. It's morally and economically wrong.