Of course. Just to state the obvious: asking for puritan veganism is not necessary, and diplomatically irresponsible.
A friend of mine loves meat dishes, but has no problem eating vegetarian or vegan for days in a row. For him, meat is an optional ingredient, alongside cabbage and beans, not the staple of a healthy or even psychologically necessary diet.
That’s the mindset that is feasible and that we need. Not the religious zeal of that which calls itself veganism.
There's also milk, and milk product that I would have to give up or accept substitutes for.