Life choices is kinda vague. I enjoy wearing diapers, so I make time for that during evenings, but I wouldn't cancel social plans just to wear diapers more, it's more like diapers are one of the things I do on calm nights or when I don't have other plans, same as videogames or reading a book (all of which overlap). I do live alone rather than, say, seeking a roommate to reduce my overall cost of living and save more money. But I'm financially able to do that and still save a good chunk of my income, and I strongly suspect I would want to live alone at this point in my life even if I didn't wear diapers because I love the freedom of controlling my own home and coming and going as I please. So, being able to be diapered more freely is just something of a perk. There are other things I like that are maybe ABDL-related. Like, I enjoy watching cartoons, so some of my TV time is spent on stuff like Steven Universe and My Little Pony rather than, say, Supernatural and Game of Thrones, which I suppose is an ABDL motivated choice. But if we're starting to look at all my preferences from favorite foods, to entertainment, to mannerisms and word choice and everything else, I think it's pretty hard to untangle all the influences that go into those things.
Overall, I'd put it this way. ABDL is an influence on who I am. It's a core piece of me. It helps balance all the other pieces, brings me joy, influences my beliefs and preferences, and my outlook on the world. It is also just one piece, and there are many others such as my family and upbringing, my education, my work, and my religion, to name a few. All put together, these are the things that make me, me.