Earlier quoted context omitted.
This has been measured by researchers, and cursive provided no speed advantage over printing. That's why it's so easy and common for people who know how to write in cursive to revert to printing all the time even after years of cursive in school. Cursive as a non-art, general writing system was developed because of the need to keep the pen nib in contact with the paper as much as possible to draw the ink drop forward…
Have researchers ever published they research? Also, appreciate downvotes from the illiterate :)
Not surprisingly, of course, the research doesn't simply settle the policy issue. People's opinions about educational policy are strong and the general quality of research in the field is, IMO, pretty weak, so it's only quoted when it supports your opinion and doesn't change anybody else's opinions.
Also, I'll give you a couple of upvotes to hopefully neutralize any downvotes.