OP said "hit by," not "killed by." I wasn't able to find a number for people being struck by lightning in a cursory search other than "hundreds more" than are killed by lightning.
Assuming you believe these numbers to not be somewhat inflated despite widespread reporting of such incidents, the odds of dying from COVID as a 25-34 year old in the US are 1 in ~33,000. This is ~15x times the odds of being struck by lightning. However, I would imagine those odds go down significantly further among 25-34 year olds with no risk factors, and it is largely the people with no risk factors that are going to speakeasy gyms.
[1] https://www.cdc.gov/disasters/lightning/victimdata.html
[2] https://data.cdc.gov/widgets/9bhg-hcku
[3] https://www.infoplease.com/us/census/demographic-statistics
Re:the relevance of the comparison, I was just responding to the conversation.
Cherington, J. et al. 1999: Closing the Gap on the Actual Numbers of Lightning Casualties and Deaths. Preprints, 11th Conf. on Applied Climatology, 379-80
Is it beside the point? It's false. Lightning kills about 50 people a year in the US [1]. It's frankly fairly rare to get struck by lightning [2]. More people under 34 have died from COVID-19 per month since April than die from lightning in a year [3] (quick note that the breakdown is 25-34). That's to say nothing of long term health impacts from the disease. If you are going to argue that it's a rational choice, you need to be working from correct assumptions.
And more importantly than that, getting struck by lightning does not mean you will make other people get struck by lightning. Making a choice that makes sense for you does not mean it makes sense for society. That's why we have laws.
[1]: https://www.weather.gov/safety/lightning-victims
[2]: https://www.cdc.gov/disasters/lightning/victimdata.html
[3]: https://www.cdc.gov/nchs/nvss/vsrr/covid_weekly/index.htm