Pronouns are a center point in Gen Z's social structure because they grew up with it as an identity issue that Millennials pushed to the mainstream, not because they brought it to the table.
Same for cancel culture. You'd have to believe these things became prominent in the last 2-3 years. They didn't.
First, no Zoomer is 30 yet. At least half of them are 23 or less. Second, you're speaking too individualistically with that notion. Third, the 20s generally are not an age where people have the station in their careers or life to make real social changes.
By your logic us Millennials were done with the 08-09 housing bubble when half of us weren't even done with school.
Pronouns was not an identity issue that millennials had, it was one that the trannies and LGBTQ groups had. The same groups that claimed millennials (and older) discriminated against them and zoomers embraced. these talking points started in benefit of and served the young zoomers. Don't confuse the Alphabet folks identity issues as a millennial issue. Millennials are known as the narcissist generation, we have a very strong sense of self identity. We don't have identity issues. Just look at work environments that have both gens and you can't tell me that the ones pushing pronouns was us. The ones saying "ohhh you can't do that" was us. In my experience and those around me, it's not. Anecdotal, sure. But one that can be repeated over and over. Same with cancel culture. I won't argue that it started by millennials maybe but it took a whole diff turn with the social media crazed zoomers. With us it was celebrities, politicians etc. Zoomers took that shyt to every corner of the internet and world. Trying to cancel gas station workers who called a tranny a man or someone commenting on random shyt online.
And social norms aren't the same as social changes so career means nothing this regard. Social norms are about the culture and values and that's something that starts very young so don't negate that due to age. Those norms are already created and cultivated. The aspects of life they find entertaining, or focus on place value on is well underway even at 23. It's several years in the making by that point. Again, im not talking about social change, that comes later. And it will echo those values they take with them that they showcase now. These social norms will reflect as they age out. It's socially normal for them to be socially awkward, to be reclusive, prone to mental illness and depression. To have difficulties functioning in team environments and etc. This is all proven already.