I've never owned a car, I move around either by public transport, by bicycle or on foot. I minimize my travels and outside transcontinental flights I attempt to use railways. (Rode my bike yesterday, traveled outside the range of what I can do on bike/foot more than a year ago)

I doubt that my partner and I will have children. (Of course I can't foresee if any of us will have a sudden change of heart in the next years, but in my specific case I've had a strong no-children stance for most of my life. I'm no longer young either so I doubt I'll ever change my perspective).

I live a mostly frugal lifestyle, with the possible exception of cycling and tech. Even here I feel like I make good use of my purchases long after their "planned" lifetimes. (In the past 20 years I had maybe 4 phones in total. I've been riding the same bicycle for about 5 years, the previous ones I donated)

I do my part in reuse, reduce, recycle mantra. (I would say daily :D)

I support politicians that have a vision that reaches outside immediate economic benefits. (Voted in 2020 for EU/local parliamentary elections with young politicians invested in a greener future. Not all of them proved to be true to their word, but I'm not discouraged yet)