[valachio]

Getting a booster every 6 months vs every 24 months is a 4x difference in the number of boosters you have to take. That's 4x the potential complications (mistakes can happen in science, e.g. thalidomide) and 4x the cost.

And no boosters are not free. I can't wrap my head around how many people believe that boosters are free. No they are not free. If you are not paying for it directly, the government is paying for it with taxpayer money. And tax money doesn't fall from the sky. It comes out of your wallet.

Or the government can print the money and risk higher inflation, which is just an indirect tax on your money.