I am an Australian and the only OS flights I have done in the last thirty years are three flights to New Zealand. I have carer responsibilities in Sydney so do fly from the Gold Coast, where I work, to Sydney and back when required. For three years I did this journey by train or car and didn’t fly at all. There are workplaces challenges in not flying overseas as the requisite networking is much harder. I don’t think my personal practices do shift the culture at all, but it makes me feel a lot better to act out my beliefs as opposed to just writing about them.