The last time I was required to write in script for school was 5th grade. By the time I took the SATs I had forgotten about half of the cursive alphabet (You have to write a sentence in cursive saying that you are who you say you are). It was the hardest part of the SATs, and we actually went over cursive for 10 minutes in my SAT prep class because no one remembered cursive.
I never learned to hold a pen/pencil 'correctly', and after 2nd grade my parents/teachers stopped trying to teach me.
I can't even write my whole last name in cursive correctly. I have no idea how to link "vin" properly. It doesn't really matter though, I find most people's signatures barely resemble their names.
I do, however, use a pen/pencil every day to take notes in class or just to write things down I need to remember/tell people. I just write in print, it works fine for me.
I don't see why children are still taught to write in cursive, it is never used outside of their signature. Once they can do that, I say move on and teach them more important things like math.