Fascinating, Susanna. You and I both encourage people to be themselves, but what is that exactly? Writing Voice is part of that. I've been writng for over 50 years. My early Voice was trying to impress others. Long sentences. Big words. My Voice is simpler now, I think.
I don't think we should try toi change our voices. I think our voice changes with us as we develop, grow, make different experiences, meet different people.
I, for instance, notice that my voice changes with the people that I surround myself with.