My handwriting has been the same since I was about 8 years old. I hated cursive with a passion. I still do. If I have to write, I use plain print and scribble a signature when I need to. Of course, the difference in legibility is very minute. My 3 year old is already showing signs of having better penmanship than me. And, I'm ok with that.
I think The Oatmeal summed it up best.