They can’t make an informed decision with just the information.
They also need an understand of statistics, risk, contraindications.
They need to understand the study and its data against the backdrop of other scientific work in the same field.
They need to be able to evaluate the reliability of the source and be able to understand the scientific method to be able to fully make an informed decision.
Without these critical thinking skills, they rely on other people to evaluate and tell them what to think.
One way this happens is via sources like newspapers, the NHS, government - all of which have checks and balances, fact-checking and professional standards.
The other way is from social media which espouses egalitarian ideals that allow anyone to become a publisher.
I prefer getting my information from reliable and verifiable sources, rather than some random with a camera.