Hey I once read that some companies would actually select candidates based on their handwriting if they scored equally well on all other tests. Thankfully as artists I don't think anyone is going to give/refuse us work based on just our handwriting. Improving my handwriting does seem much easier than improving my art though.
I try and write every now and then just to make sure that my handwriting dosen't slip away completely, and also because I enjoy it. I used to write extra big in primary school, teachers told me to write smaller, so then it went the other extreme and was so small it was almost un-readable . Now it's somewhere in-between. I do believe that handwriting can be one way to tell a person's character, although it's not a sure thing IMO.
the sole intention is learning to fly