Spending and getting into debt are useful tools. But I don't have any friends in tech who need to be told "hey dude, you should be spending more". I have quite a few friends who would be better off spending less.
My mother, for example, refuses to replace her iPhone SE with something with a larger screen despite 1) having failing vision and difficulty reading the screen, 2) using her iPhone every day, 3) easily being able to afford it. The idea of spending $1,000 on a phone is just something she is unable to bring herself to do, even though I think it would help alleviate a real source of frustration in her life.
My father, when he started shopping for his most recent car (and probably his final car), set out with the intent to buy a luxury car. But again, despite being able to easily afford one, all he was able to bring himself to buy was a well-equipped Toyota. Don't get me wrong - it's a great car and has served him incredibly well. But it makes me a little sad that he wasn't able to bring himself to finally treat himself to a luxury car after a lifetime of hard work and saving. They did a lot of long road trips together in that car in retirement, and I think they would have enjoyed something a bit more luxurious (though on the other hand, the reliability of the Toyota is not to be discounted).
(Sorry.. I grew up deprived of data teaching me that "Schlep quickly pays off in Interesting Times")
Eventually I just sat down, looked at how much it costs keep the house a few degrees warmer in winter, and realized we could afford to be comfortable. And if I were really hell bent on saving money, there were other lower-priority expenses I could cut back on first. But I don't even think it was even necessarily about the money - it was more that saving energy and toughing it out felt virtuous to me. Which is all fine, but not something that should be imposed on your partner if they don't share the same beliefs (or if they just get cold easier than you).
I'm reminded of the intelligent corvids in Adrian Tchaikovsky's Children of Memory where the sum of the two birds forms a being with intelligence in a way that the individual segments do not. The frugality is a deeply embedded piece of our being and undoing it seems hard, but together we financially operate in a place that leaves us both feeling comfortable.
0: In the US sense of the term, not in the sense of the term as known in Taiwan or India.
Compare to: "A pick-up truck is a useful thing to have, not because you are insecure about your genitalia, but because you can take home bigger products from IKEA."
Whenever I have something a little extra in my fridge, most often Italian prosciutto, I refrain from eating it, instead saving it for a "special occasion" even though it is, like, my favourite thing in the whole world. Eventually I have to throw the mouldy prosciutto away because I was too frugal to eat it.
I'm practicing though, learning to eat it. I don't know why it's so hard, I mean it's delicious! Should be easy!
The maladaptive part is when you start regretting not saving money, because it has two knock-on effects: it makes the decision to spend much more emotional (which negatively impacts rational decision-making) and it can negatively impact the enjoyment of the thing itself. For example, the maladaptive part might take the form of being reminded of the cost every time you look at the repaired phone.
The reality for most people is that the trade-off is actually between time spent on looking for bargains, or time doing something else that doesn't make any money.
Why “few successful startup founders grew up desperately poor”
https://rickyyean.com/2016/01/22/privilege-and-inequality-in...
Poverty mindset is maladaptive because it teaches you only money is worth anything, so you hoard it. But in truth time is also worth a lot and sometimes it’s wise to use money to buy time.