system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is Social Security "running out" ?

I keep hearing that Social Security is running out and people of my generation wont see any penny of the money we are paying now. If this is true, why? And further, how come Social Security is at danger of running out but other welfare systems are not?
gpt
The social security is funded by payroll tax, for the benefit of mainly retirees. Problem is that the population of the United States (and pretty much all developed countries) is aging, and the pool of people paying the payroll tax is decreasing while that of the aging dependents are rising. ATM it is predicted that at its current rate social security will be exhausted in 2033, but it's not hard to solve that problem. Increase the taxes, upping the age at which people can start collecting benefits (logical now that people are retiring older), allow immigration so that more people will pay......... but some are only interested in cutting the benefits.