In 2019 it is still common practice to use http instead of https because it is somewhat easier to set up. While this is certainly true, it is already fairly easy to setup SSL certificates for your website.
For development and testing purposes we recommend mkcert and for staging and live environments we promote the use of Letsencrypt. Both are excellent tools that we’re happy to recommend. Eventually we’ll also have video tutorials for these tools demonstrating how to set them up on each of the major operating systems.