Earlier quoted context omitted.
Because it protects you and others around you from disease. Cowards will make up lies and excuses for not taking it, though. I suppose you have to decide who you trust, your doctor, or internet trolls. My guess is, if you ask your doctor, he or she will recommend you take it.
> Because it protects you After already having had Covid? I'm fit in my 30s. > and others around you from disease. Has this borne out in practice? > My guess is, if you ask your doctor, he or she will recommend you take it. Guess again.
If you got COVID-19 this July-ish (when BA.5 was biggest), maybe you don't need a vaccine update. But given how much the virus has evolved, it only makes sense to update your body to the newest version that's out there.
If the next big strain is from the BA.5 lineage (or closely related lines like Omicron), having your body trained on the new proteins / RNA should help a lot.
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Fortunately, it's not as big a deal because original strain / original vaccine looks like it still prevents hospitalization and deaths. So this is strictly about reducing the spread of Omicron / BA.5 and related substrains.