Even though there are many sources nowadays that use 1995 as the starting point of Gen Z, it seems that there are still a lot of other sources (such as the Pew Research Center) that lump 95-97 into Gen Y. Like, if you type "Millennials 1981 1997" or "Millennials Ages 18-34", you get a good amount of results.
I'm guessing that in the future, these sources will probably retroactively "fix" the start of Gen Z back to 1995. Do you think this will anger some Y/Z cuspers? I know that if you go to pretty much any comments section about Millennials, the top comment is "I was born in 1983. I was told my whole life I was Gen X, now I'm a millennial? This is disgusting".
Will Zers react the same way; i.e. "I'm 20, don't lump me in with 5 year olds who have iPhones and play Minecraft"?