See also Arguments for Preferring HTTP.
HTTPS secures all web traffic over TLS which keeps your session private from your ISP.
Costs as low as $0. Letsencrypt Zerossl
It's easy to configure with Automatic Certificate Management Environment (ACME) protocol. Wikipedia
Statements by Trustworthy Internet Participants
Federal Chief Information Officers (CIO). Article
Internet Architecture Board (IAB) statement. Article
Internet Engineering Task Force: "Pervasive Monitoring Is an Attack". RFC 7258
Mozilla Security Blog: "Deprecating Non-Secure HTTP". Article