[rococode]

My guess is that it's simply a tech challenge. Justifying text seems non-trivial, especially if hyphenation is used (which I believe is typically the case in print, otherwise you get huge spaces).

According to caniuse `text-align: justify` is still not widely supported [1]. At this point, with how long people have had to get used to non-justified text online, it probably wouldn't be commonly used even after it becomes widely supported.

The specs for the justify property illustrate some of the challenges in implementation [2].

[1] https://caniuse.com/css-text-justify

[2] https://drafts.csswg.org/css-text-3/#text-justify-property

[stephenr]

No, your first reference is not about `text-align: justify`, which has had good support even since ie6 days. It’s about the `text-justify` property which gives more control when `text-align: justify` is applied.