Well done for opening this contoversial topic up in a peaceful manner (many don't!!)
An issue I have in particular with herd immunity is the adult population. All vaccine schedules target babies and childen but adult boosters seem to be rarely followed up. By the admission of the manufacturers, not all - if any vaccines provide life long immunity. What does this mean for herd immunity if only children are up to date on their vaccines? Does herd immunity even exist or is it just another myth?
Excellent point! My intuition is that herd immunity may be a marketing tactic! Upvoted! =)
Immunity is the strong form of resistance.
Even if you are no longer immune, you are still more resistant to the disease and your body reacts faster to it, too.
Still grown-ups should do what the doctors says, too!
There is also the fact that vaccines do not protect 100% of time, more like 40% to 80% depending on the vaccine, and the people vaccinated can be the cause of spreading a disease.