It's always been financially complicated for most people. The notion of a nuclear family prospering with a single income was mostly only possible for a limited slice of the US population during a few decades post-WWII. If you take a broader historical view that was a brief anomaly.

And it's really weird that anyone would think of something amorphous and uncertain like climate change as a reason not to have children. Even the unlikely worst case scenarios are still going to have less impact than the major wars and plagues that our species has lived through. Some people just lack a sense of perspective.

More complicated than when? You used to have kids because you needed more hands to work the farm and a good number of them died young.

> It’s a lot more complicated financially for. You used to not have to rely on dual incomes just to survive.

This is a toxic myth and acts as excuse to blame extrinsic factors that won't see change by the time you'll need them to, even if they can be fixed. Economic life today can be a lot more complicated for middle class professionals and skilled laborers, but they were only ever a fraction of the population in the first place, and families in tougher circumstances than today's middle class folk figured out how to navigate the cards they were dealt.

Emotionally, it legitimately sucks if you come from a comfy middle class background, and have a career that you believed should have been good enough to deliver the life you remember your parents or grandparents having and now doesn't seem to be. It feels unfair and disorienting, maybe. But the fact is that middle class lifestyle is gone for now, and if it does manage to get restored, that restoration will take a generation or two to come.

In the meantime, you have to figure out how to adapt and live that more modest and "more complicated financially" lifestyle. It can be done. Lots of people have been doing it for a long time. Along the way, you'll probably discover that lower class folk who never had the luxuries of your parents and grandparents in the first place were not seeing the world as something they had to "suffer in": they lived in homes, but often with more people in them. They traveled, but more infrequently, less glamorously, and with more pragmatic rationale like "visiting family" than "seeing the world". They had parties, but served simpler dishes on less fancy platters. They had "child care" when two parents worked, but got it by exchanging favors with family or neighbors instead of sending half a paycheck to a prestigious daycare. They laughed, they drank, they had kids. It's not a world of suffering to just not have some luxuries.

Most kids used to work as well as both their parents, school is a middle class and/or modern thing.

Indeed, it is society's expectations that are hard.

I moved to the middle of nowhere after my kids were born. One day I let my child walk home "alone" from school, for the portion that is on our own property, and of course as soon as you do that a fucking Karen will randomly pop out of nowhere, and start interrogating the child. It is like clockwork. You could be 100 miles from civilization and as soon as you do something someone somewhere disagrees with, a fucking Karen (and even in a minivan, down rugged rural dirt roads, how the fuck did she get there?) will magically be there that exact second with a cell phone at the ready to call CPS. Thankfully I was able to stop her before that happened, as I was actually watching from behind the bushes, which in itself is shameful but saved my ass.

Early twenties family formation bring the norm was more of a postwar thing. The guys that came back from the war really did have to grow up fast (seeing your best friends getting blown up at 18 will do that), and they essentially had zero desire to have racous twenties filled with dating around and traveling and soul searching. They'd had enough chaos already, and were all extremely eager to settle down into a peaceful family life immediately upon their return home. The age of family formation has slowly crept back upward since then, and historically, in normal peaceful times it's usually been late twenties.

I would encourage you to look at the medical costs of children in the US. My children's braces alone will cost ~$7k-10k over the life of each of them, with insurance, and to do without will cause irreparable oral damage into adulthood. Certainly, this doesn't apply to other developed or developing countries, but to say "you just need to feed them" wildly differs from reality. You're just ignoring suffering at scale by saying "it'll work itself out." It doesn't, and I can provide pages of citations, grounded in data, to support this assertion. Also, having served a short stint as a Guardian ad Litem to advocate for children going through family court, I have anecdotal observations as to failure scenarios of failures to adequately provide for children, both materially and emotionally.