I think being able to read cursive--at least on a basic level--can be useful. I'm not sure what the fuss is with people unable to read it, but it may simply be my age. Cursive was taught (although those who've seen my cursive might well wonder who taught me and why didn't they do a better job

) and it was something I saw often enough.
As for using it, it was optional a long time. Because my writing was so bad, I switched back to printing when I was in
hell high school. I was not alone--a professor my family knew lamented to me once about his students using printing, not cursive.
I notice some people in my family of my parents' generation noe use printing on greeting cards or notes. Maybe partly conditioned by the youngest generation, which might not know cursive? Although I think my father--who needed to use pen and paper a lot for his work--used printing a lot for years.
Arguments that cursive shouldn't be taught aren't new. I remember seeing a book on education that mapped out the author's thoughts of what education should be indicated a feeling that cursive should be abandoned. I saw that 35-plus years ago, and the book was more than 10 years old then.
Meanwhile, on the other hand, I've heard arguments that learning cursive may have value past being able to read or write cursive.
Oddly, though, I've started using cursive again... A lot may because I started using a fountain pen again. There are arguments that ballpoints helped kill cursive, and I think there may be some merit to that. I can say I think my writing is neater than I think I obtained with pencils and ballpoints when in school, but there are probably other factors, too (I'm more likely to take time and care now--back then, I wanted the day's busy work assignment done ASAP).