Agreed. So much of it is identity (going back to James Clear in Atomic Habits). "I'm not a smoker" is more powerful than "I'm trying to quit".

"We just don't watch Youtube on our phones in this house." [and you work to develop that into healthy self-confidence rather than ego]

Growing up homeschooled, we had the same simmering sense of pride in not doing what others (e.g. "public schoolers" did). Never had a rebellious teen phase, etc. Some families overdid it, but...idk...I'm still quite close to my parents, so I never felt stifled.

It makes it -very- natural in life to focus on what my SO and I think are optimal and more or less disregard what's normal.