If you mean "be just fine" as another way of saying "exit the gene pool to make future generations stronger by not contributing their own obviously broken ladder" then sure, I guess. Addition by subtraction, and all that. Hooray for Darwinism? At least by making her own money in her 20's instead of prioritizing making a family, she'll expand the labor pool which will reduce the amount businesses have to pay for labor so there is a plus side there. With more 20-year old women coming in to the labor pool, society doesn't need to employ 50-year olds at all. In with the new, out with the old, and don't worry about the effect population collapse will have on entitlements or annuities. It'll be fine says Celexa.
I think you're talking on a macro level, where I'm talking more on a micro level. But applying the macro to the micro is a pretty strange mindset to me.
I mean, on a macro level, the most optimal thing you could do for our population is to pump out as many kids while simultaneously producing as much growth for the economy as possible. So that's what you should devote your life to doing? Any desire to the contrary, for example, being gay, or valuing free time over producing for the economy therefore deciding to get by on a lower income to make room for that, or wanting just one kid or even no kids, means you're failing?
Like, I think we can both agree on a macro level, we need people to have kids. But, if society has a shortage of people reproducing, I don't think anybody on an individual level should feel guilty or like a failure for not having kids any more than somebody should feel guilty for not being a doctor if we have a shortage of doctors. There are and will continue to be people who have very fulfilling, meaningful lives who've never had kids.
And I apologize if I'm wrong on this, but you seem to be implying that people who don't have kids are depressed because they're working against their evolutionary wiring. The research on that is a bit mixed, but from what I understand, the general consensus is that parents of new-borns do get a brief boost from a mental health standpoint, but after a year or so, it dissipates and eventually, generally-speaking, lowers below the level of non-parents. Not to say people shouldn't be having kids, but the idea that your mental heatlh will suffer without having kids is nonsense.