I'm old enough (almost 60) to have learned cursive in school, and it really wasn't a big deal and I certainly never suffered from it. But other than my signature, I don't think I've written anything in cursive in 3 decades or so. Almost everything I write is typed on a computer, and the small amount of handwriting I do is done using non-cursive printing because it usually involves filling in a form.
If you are studying history or classics or whatever and need to read old manuscripts, then sure... you need cursive. But almost nobody else does nowadays.
The only exception I can think of is if you want to hand-write notes in class, which I found made them stick in my memory much better than typing them. In that case, you need cursive to be able to write at a decent speed.