Eh, I can think of some context dependencies. I don’t have a blanket expectation for first aid knowledge.
For example, I like backpacking. I go on several multi-day trips per year. I don’t necessarily need a partner to like backpacking too; I’m fine enjoying my hobby myself or with friends. But if they do like backpacking and haven’t done the work of learning an appropriate level of first aid, I will absolutely judge them negatively. People should not go wandering into the backcountry, away from people and cell service, with absolutely no idea how to take care of themselves.
Someone who never has a need to get far from medical experts? Much more understandable to me if they don’t prioritize learning first aid.