1. Non SSL/TLS sites get marked as insecure. With recent events (ISP allowed to sell your data) this seems like a no-brainer.
2. Self-signed certificates such as Letsencrypt get a normal status.
3. Extended Validation SSL (or however they are called) get the green lock to mark them as trusted.
About your first point there's a huge chunk of the internet who doesn't even speak English so I'd say yes.