For 20-30-somethings that probably read a pop-dev news aggregator? Probably not. Or are most of us in our 80s? There is also substantial variation in reported IFR between political jurisdictions per the CDC (1-9% I think). Seroprevalence based IFR estimates tend to be consistent across national boundaries (and is a much lower number), but I wouldn’t make so bold as to tell you to believe research studies over political appointees at the CDC.