Shaming doesn't work as motivation.

[Jason76]

I guess it works somewhat, but it seems like most of it hasn't changed human behavior. The whole, "Why don't you get a job? Why don't you get your own home, you 30-year-old? Why don't you take a bath?". 😡

So obviously, it doesn't work cause of the prideful motivation of the speaker. Therefore, it only causes a rebellious backlash.