Maybe people at that age just stopped feeling the need to answer SO polls..?
The Talmud teaches us that "happy is the person who is content with his lot". Frankly, I'd rather spend my time working to hit that success criteria than some comparison careerist existential crisis.
Personally, I don't like the way in which polls limit your freedom to express yourself, instead pigeonholing you into categories that then lead to stories like this.