The flu kills more kids than Covid. CDC fact. I’m sorry your acquaintance is sick. He is more likely to die in a car accident, drug overdose, a flu virus, suicide, etc.
The flu killed 61,000 in its worst year in the last decade. That year, there were around 45 million cases of influenza. If there were 45 million cases of Covid, that would approximate to 1.36 million deaths. Still not a massive percentage, but certainly a large number and that would be in addition to whatever flu deaths occur.
This is, of course, using approximate data because we are in the first season of Covid and there is no vaccine for it (yet), versus flu where it has been in human populations for several thousand years and there is a vaccine for many strains of it. It may well turn out to be equivalent to the flu once a viable vaccine is available to everyone, but at this point, the data just isn't there to back that up yet.
This is all based on readily available, scientifically accepted data. We can, obviously, speculate about the data, since data is often manipulated, but without non-anecdotal, verifiable proof, speculation remains speculation and nothing more.