The users, the consumers, the parents, the grandparents, the activists, ... don't even know what CAs are. To the degree that people trust computers at all they trust what their browser tells them is safer.
Generally almost everyone has experience with malware, bugs and broken software. No one who has used a computer for more than 10 minutes absolutely trusts computers in any capacity including security.
Generally almost everyone has experience with malware, bugs and broken software. No one who has used a computer for more than 10 minutes absolutely trusts computers in any capacity including security.