1 - Are you a vegan or interested in vegan food? I'm not a vegan but do, occasionally eat vegan food.
2 - Do you feel vegans are adequately provided for in the highlands? Haven't a clue. 'Fraid I've only been to the Highlands once.
3 - Would you entertain eating in a vegan restaurant or cafe based in one of the popular highland destinations? Possibly, though I wouldn't seek out such a venue specifically.
I do wonder if a vegan cafe/restaurant (in the Highlands or otherwise) would also use vegan washing up liquid and disinfectant products, vegan soap in the bathrooms, vegan utensils (some plastics have animal products in). Would their staff also be vegan? Wear vegan clothing and footwear. How about the health and safety and environmental health legislations? Would that allow for a truly vegan establishment?
I suspect most vegan establishments are less vegan than they would like you to believe or, perhaps, like to be.