As I mentioned earlier, my Olympus E-M5 Mark III is now my primary camera and that means I like to take it with me when out walking, etc. When walking, I do not like large hoods sticking way out on my lenses, but I also don’t like touching the front of a lens or hitting it on doorways, etc. when the camera is hanging at my side from a strap.
My solution, which might be of interest to some, is to screw a step-up ring on the lens. On my 17mm lens I am using a 46 to 49mm step-up ring as shown here. It gives me just a bit more protection for the front of the lens for very little added weight or cost.
Some just screw a clear filter on the front of the lens but I find that I am always needing to clean them and that they eventually get a little scratched and don’t last as long as just using a step-up ring. In addition they cost more.