I can't think of a single house I have ever been in with an out swinging door. I am sure that in my 70 years I have entered/exited thousands of houses. I am pretty sure every door in Norfolk opens inward. I am not sure if it is required by code, but it is the standard in the US.
Apartment buildings and commercial businesses have out swing doors for the exit doors and fire stairs, but inside the building, the doors swing inward on each private apartment or office.
Just as a security thing, if it swings out, a thief can knock out the hinge pins and open the door. With an inswing door you can slam a door shut and put your shoulder to it to keep someone out, but with it opening outward, the person outside can pull it open as soon as you turn the latch … with you being able to do nothing to stop him. Also, a person could put a board against the door knob and the porch and you would be trapped inside. With an inswing door, you can use the same type safety bar and make the door impossible to force open even if the intruder picks the lock or tries to kick the door in.
As said by the count, any debris from a storm or snow/ice will block an out swinging door and make it impossible to exit.
Anyway, we are probably drifting away from the shop build.