Does that explain the level of nuance around public health policy? Covid policy for example. Some countries take into account natural immunity (more nuance). O

Does that explain the level of nuance around public health policy? Covid policy for example. Some countries take into account natural immunity (more nuance). Others don't and simply require everyone to be vaccinated regardless (less nuance). Some recommend or even require kids to get the Covid vaccine (less nuance - everyone take it), other countries recommend against (more nuance - some should, some shouldn't). They all have access to the same data. Is this simply reflective of a different approach in communication? Or a different level of confidence or respect for the population to grok nuance?