Growing up in Kerala, I didn't notice most of my defaults. I shared them with nearly everyone around me, so they never came up.
Moving to the UAE changed that. Most people I work with here grew up somewhere else. I hear Hindi, Arabic and plenty of other languages every day, but at work we all use English, and each of us brings different habits to it. Habits I'd never thought about started to show.
The biggest one is how much I leave unsaid. A short message that reads fine to me can read as vague, or as cold, to someone with different habits. So I write more down now: what I'm asking for, why, and by when. A clear written request works whoever reads it.
Back home, I knew very few people who had started a company. Here I've met many, and that made starting one feel less strange.
Kerala is still where my defaults come from. Living here, I check them more often.