I think you should do the salon opportunity first. Gain some experience, build up clientelle and reputation. You can always do mobile on the side as well as. I work in the salon on commission basis and do some clients at their home, but i dont spread the word about mobile too much. i prefer working in the salon for many reasons. Everything is around me, dont have to worry about not having something with me. Time factor as well, the time that takes me to get ready, drive, set up, do nails, clean up, drive away and so on - i can see 2-3 people in the salon.
Passing trade is more likely in the salon.
The biggest for me is actual experience of going into the salon, getting something done rather than someone coming to my home. People are different though. So you need try both for yourself to decide what you prefer))
Good luck:hug: