You want your local web development set up to reflect your production reality as much as possible. URL parsing, routing, redirects, avoiding mixed-content warnings, etc. It's very easy to accidentally find oneself on http:// when everything in 2018 should be under https://.

I'm using ASP.NET Core 2.1 which makes local SSL super easy. After installing from http://dot.net I'll "dotnet new razor" in an empty folder to make a quick web app.