In the US, the flu kills between 12,000 and 61,000 people each year depending on the season. COVID-19 will almost certainly reach the low end of that range in between two and three days. It went from 100 to more than 9,000 deaths in only three weeks.
It's not the flu.
P.S. everyone who can get a flu shot should, every year, regardless of age. Herd immunity assists in protecting the entire population.