When I was training we were instructed to walk out to the A/C and perform our pre-flight checks and then start the engine and waiting for the instructor to board before calling for taxy. It used to worry me everytime when I watched the instructor climb onto the wing of the HR200 and then open the canopy and climb in. It’s so easy to slip and fall over the leading edge and within the prop arc and I’m surprised an issue hadn’t already pccured to that day.
Eventually (still as a student and after) I decided to simply wait for the instructor before powering up off my own occurred.