Robots don't pay taxes, and, therefore, don't help to support the elderly safety net (which is one the biggest problems with a declining population, supporting

Robots don't pay taxes, and, therefore, don't help to support the elderly safety net (which is one the biggest problems with a declining population, supporting this system). One way around this is to increase taxes (either directly or indirectly somehow) on companies that successfully implement automation, but that opens up a whole other can of worms.