Not necessarily. Some leftists demand conformity in beliefs. “If you don’t believe XYZ, you’re a shill/neoliberal/fascist etc.”
I feel like favoring free thought and opposing conformity leads to arguments, but demanding conformity leads to enemies (like this meme).
The WHO only recommends vaccines for older people, immunocompromised people, pregnant people, and those in healthcare. This lines up with their flu vaccine recommendations.
The US is usually more aggressive with pushing vaccines: flu, COVID were recommended to everyone. The chickenpox vaccine is also recommended for kids, but that’s not the case in lots of Europe (apparently).