i don't at all think it's that obvious / easy.
i was taught cursive in 2nd grade. and my handwriting is gobsmackingly horrible. coming back to stuff I've written after I've forgotten the context, makes it impossible for me to understand what I've written.
and it's not for lack of trying. I spent almost every summer till 10th grade, practicing writing 30 pages a day. and still it gets reset to my horrible hand writing in weeks after school start. at this point, i just consider myself hand writing challenged.
i cannot tell you how much happy i am that, computers have made handwritten exams obsolete.
I was in the same boat as a kid. My handwriting is so bad, for the essay portion of the state test we had to take one year, they got an exemption and let me use Notepad to type mine out because they didn't want to risk my grade if the person couldn't read my writing. This was in the mid-2000s.
These days I just disclaim to people when I hand them anything handwritten that I'm very aware my writing is terrible, and I will not be offended at all if they have to ask what it says.