But a vaccine is basically giving your immune system a new toolbox for fighting diseases, so it would make sense to me that even if it didn’t stop you from getting the disease, it still equips your immune system to ease the severity
It makes sense, but I just never hear about that as a reason to get the vaccine, which seems crazy. The flu is miserable, so if the actual benefit of the vaccine is that you probably won’t get sick, and if you do, it’ll be for 36 hours instead of ten days, that seems to be a huge benefit they’re underselling.
It works that way yes, especially for the flu that changes so fast that its vaccination is no immune guarantee but rather helps to have milder symptoms. I guess how it's promoted depends on where you live. Also don't forget that not everyone has good cognitive capacities and such probabilities (you might still get sick with the vaccine, but symptoms might be milder) are not easy to grasp for everyone. I guess they just wanna keep the public message straight and simple.
But a vaccine is basically giving your immune system a new toolbox for fighting diseases, so it would make sense to me that even if it didn’t stop you from getting the disease, it still equips your immune system to ease the severity