Yes; one needs to do a lot more on an airways flight. I file those for FL140-180 and then ask for a level off when above the cloud as far as the eye can see, but one needs to be able to climb subsequently all the way to FL200 if necessary, so a briefing on the oxygen system is necessary. One also has to sort out the cannulas in advance as they are not really re-usable items
I would not any flight with an evidently nervous passenger, but I find they tend to not be interested in flying "GA" in the first place... but then I don't fly commercially.