Because this isn't person to person and the analogy and comparison don't work. It's a social contract between society and the government we create that says we will pay into a system so that the elderly of this generation can retire and we can feel confident that the generation that hasn't been born for us will pay for us when we're old.

The government is not a household and making government budget comparisons to a middle class family and asking people "well if someone randomly asked you to give them 25% of your money would you do it?!?" simply don't hold and don't even make sense.