What salary hits the sweet spot?
They did a few studies that showed there is a "sweet spot" in terms of salaries and life satisfaction. If I recall correctly it was somewhere around 70k, although I don't remember if it was US OR CAD.
Honestly, I think even if you live in a big and expensive city, like the GTA, in 2018, 5 grand after taxes a month (aka around 75k a year before taxes) should be more than enough. Now, due to the housing crisis, it depends if you are ok with living in a condo though. If you want a house, then you would need at least a 100k salary. But if you are a bachelor or living with a partner and are ok with a 1 bedroom condo, then even a 60k salary (4k a month after taxes) should be sufficient, as long as you are a smart and mentally balanced individual (i.e. you are not crazy about wasting money on numerous vacations a year and don't have the need to go to fancy restaurants every few days and are not obsessed with buying clothes). In this scenario, a 60k salary would allow you to pay for the mortgage of your condo, a car, food and other basic expenses and bills, reasonable entertainment, and still have at least a grand left over for saving/investing at the end of the month.
So I don't know why so many people are obsessed with working 50+ hours a week in high stress jobs just to make that 100k and not being happy then having to spend even more money on taking more vacations just to offset their stress.
I don't think it is worth it to hussle so hard just to have a house as opposed to a condo. I mean the opportunity cost is just too high. You would need AT LEAST a 100k salary, and you would also need a partner with also AT LEAST a 100k salary, and you would both have to live a lifestyle consistent with a 60k salary yet work hard enough for a 100k salary, and save for at least 10+ years, and invest smartly, then finally you can put the hundreds of thousands of dollars you saved just as a downpayment, and also probably in a crappy suburb that is still too far and you would still have a 1.5+ hour commute daily, and still pay mortgage for another 20-30 years. I don't think all the trouble is worth it just to have a house as opposed to a condo.
A lot of people think that being a doctor or lawyer means you are smart. Well, being a doctor or lawyer is something that society pressures you into being, because society needs doctors and lawyers. How smart are you really in the first place if you can't think independently and follow the pressured advice of people who have an interest in making you do what they want you to do, and all for a return that might not be worth it?