Then why are cigarettes legal? Second hand smoke is deadly.
How many people die needlessly of cancer?
Exposure to second hand smoke in many place has been greatly reduced because indoor smoking is banned except in one's own home.
As of September 30, 2020, 27 states (Arizona, California, Colorado, Delaware, Hawaii, Illinois, Iowa, Kansas, Maine, Maryland, Massachusetts, Michigan, Minnesota, Montana, Nebraska, New Jersey, New Mexico, New York, North Dakota, Ohio, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, and Wisconsin), American Samoa, the District of Columbia, the Marshall Islands, Puerto Rico and the U.S. Virgin Islands have 100% smokefree indoor air laws for bars, restaurants, and worksites (private and government).
Many of the remaining states are limiting where people can smoke.
In Oregon, smoking is not allowed within 10 feet of any entrance, exit, window and/or air intake vent of any indoor workplace or public place.
Most of Europe has banned or severely cutback on indoor smoking with the exception of your home. That being said, it may not be as rigorously enforced as it is in the U.S.
The first time I visited Germany as an adult was in 1988 when my son got married. Believe it or not in the little Bavarian village where he still lives there were cigarette vending machines on street corners though out town. They've been gone for sometime now. Germany still have very liberal smoking laws.
Outdoor locations with the greatest number of smokers resulted in average exposure levels that are considered unhealthy for sensitive groups and peak exposure levels that are considered very hazardous for everyone. Secondhand smoke odor is detectable at 23 feet from the source and irritation levels began 13 feet from the source. Furthermore, anyone positioned downwind from an outdoor source of secondhand smoke will be exposed, even at significant distances from the source.
I don't smoke. Many bars in Oregon have outdoor smoking areas. I find that it is pretty easy to avoid breathing in the fumes/toxins from smokers by avoiding the areas where they are allowed to smoke.
When I was in my teens and beyond, people smoked anywhere they wanted. On the street, in restaurants, grocery stores, work places...everywhere. We've come a long way since then. Just today, I read that Biden is trying to get the sale of menthol and other flavored cigarettes and cigars outlawed. Like I said, I don't smoke but IMO this is taking the whole no smoking thing a step too far.