The signature part is problematic. Many (most?) of us don’t have a need to use handwriting in our day-to-day lives. I rarely even need to endorse checks. And my official signature on either my license or SSN card are from years ago.

While my signature is fairly consistent with key parts looking similar, I almost never end up with duplicate looking signatures. An expert could probably identify them as being from the same person. A layman could almost certainly challenge the signature and win.