The first time I saw this movie... I thought of it differently. As much as I did not understand anything.
The only thing I took out of it was that it doesn't matter what path we choose we would still do well if we put our energy and grind at it.
I did not see it from the perspective of wishing for a different life, hoping one would have turned more classy or glamorous if they had separate lives.
But yes, my generation tends to think that they would have been better off if they had this or that. When all they need to do is take charge of the things they can control and leave the rest.
Taking charge of life seems to be less in vogue than a few decades ago. Now, it is about attempting to take what one wants from others, even if it isn't earned or deserved.
Grind at something cared about, and there can't be a loss.