On this and other forums I see appearing at regular intervals questions about mandatory vaccinations. Is it a sign that the ruling elites are testing people opinions to find the right moment to impose mandatory vaccinations to everyone?

I would like to point out that since more than 70 years ago (https://en.wikipedia.org/wiki/The_Engineering_of_Consent) corporate and public policies took a more scientific approach. News or questions posted on the internet with the purpose of using them as trial balloons are quite common. There is no need to invoke conspiracy theories.