But you won't know if it will bring them joy or not.
That’s true. Hard to predict the future.
I’d say it’s a lot more likely that joy or anxiety are the outlier cases, and just a kind of indifference, with a positive tone, is the baseline.
But you push ahead, even in situations where people are stuck.
And now we’re back to bad assumptions and straw men.
Fine fine, one more link.
https://psycnet.apa.org/doiLanding?doi=10.1037%2Fa0037323
Non-paywall summary: https://www.npr.org/sections/health-shots/2019/07/26/744267015/want-to-feel-happier-today-try-talking-to-a-stranger