Vaccine industry lobbies politicians who make policies and shows them how profitable vaccine industry is. Imagine requiring multiple shots of vaccine for 5 billion people. To make it more popular among the general population, they attach the word “free” to it. But in reality the govt agrees to buy the vaccine at astronomical price from the vaccine makers in addition to paying the usual inflated service fee for administering the vaccines. The money comes from taxes. The politicians gets a free ride from the kickbacks. The vax makers and related service providers make a windfall profit. It’s a great business model because general population cannot say no to taxes.