That doesn't work so great if you don't die and have lifelong complications, though. It doesn't work so great if you get it and kill your child/grandmother either.
It doesn't work so well if you have to catch the virus multiple times to have immunity either (folks aren't always immune after catching it). Not to mention the unknowns with mutations of the virus.
It is seriously much better to try to avoid catching the virus at all. The virus means you might be ok... or you might die, or you might have a lifetime of suffering that you wouldn't get with a vaccine.
https://qcovid.org/Calculation
eg. 30 year old healthy white male: 1 in 7,092 risk of hospitalisation, 1 in 250,000 risk of death.
By contrast the risk of death from anything for a 30 year old male in the UK is 1 in 1,215:
http://www.bandolier.org.uk/booth/Risk/dyingage.html
Even taking a healthy 80 year old male, the risk of death from COVID is 1 in 275, whereas the annual risk of death from anything is 1 in 15.
But it's not just about the risk to the individual. It's about the risk to the population as a whole. Both of these risks need to be balanced.
While the vaccine might not /appear/ to be worth it at a young age, by getting vaccinated and blocking the transmission of the virus you are protecting the population at large. From that perspective, not getting vaccinated is actually very selfish (using the exact meaning of the word).
People need to look at both the personal and societal aspects of the vaccination strategy. There will be social pressure to be vaccinated because it's not just about you, it's about everyone, and if we are to reopen society and get back to normal, then the expectation is that nearly all of us will need to get vaccinated.
- Death is not the only bad outcome. Many otherwise healthy younger people have experienced months of debilitating sickness, in addition to weeks of the worst flu you've ever had.
- You can pass it on to people less fortunate than yourself, who can't take weeks off work, and (in some countries) may not have health insurance, and might be at higher risk of death or morbidity.
- You're burdening a stretched health system, literally preventing other people (or even yourself) from getting life saving treatment.
- You're stopping me and everyone else from going to the pub.
The vaccine greatly reduces the chances that I have any of these things. Or heck, it even greatly reduces the chance that I'll have a week or two of misery.
The fact that we have insufficiently tested vaccines does make the decision harder.
The most sensible thing is to investigate this, maybe more without the vaccine died from thrombosis, but need to see.