Right hand for holding onto the camera grip. Right thumb and forefinger to handle the controls. Left hand to hold onto the lens. Left thumb/forefinger to control the 2 or 3 rings. Left thumb to switch on/off camera.I've been looking forward for a tiny FF ILC to show up, so I'm loving almost everything about this camera so far, except for:
1. Power switch: they got it wrong on the R and are perpetuating this dumb decision on the RP. That lock switch is in the perfect spot for a power switch, just like in my Rebel XS bodies. I understand that they wanted a power switch that wouldn't easily be nudged on by accident when the camera is not being used, but a mirrorless ILC, especially one using a tiny battery, needs to have it handy on the shutter hand. Perpetuating a wrong engineering decision just makes Canon engineers look dumb.
Following the design philosophy is one handed control using the right hand. Furthermore, many people complained that the settings would be changed when the on/off switch is located below a dial. Happened to me many times and I hated that I had to visually check every time I switched the camera on. I like that the on/off switch is on the left.
Your own single preference does not make it a wrong engineering decision.