[cutler]

Not always. Sometimes the browser presents a full-page response to the effect that the site is dangerous at which point, even if it's a harmless site, the non-savvy user will leave. Blanket HTTPS/SSL + Letsencrypt is a disaster.

[judge2020]

This only happens if the site used to be HTTPS and no longer has a certificate or the site has long-lasting HSTS.