I’ll not smoke around children. It is rude. If the kids are here, I go into the garden for a smoke, rather than doing it inside.
But that is my choice, in my own home. Nothing at all to do with the government. Most parents/grandparents do that now as a matter of course, just in case. My daughter and son in law doesn’t smoke, so I naturally do not smoke in their home.
I have seen evidence that second hand smoke has an effect - usually on children with poor diets. Nothing that I would consider rock solid proof, but there is evidence, and, personally, I’d rather be safe than sorry.
Oddly, your post triggered an odd association in my mind. The whole thing about killing children’s immune systems by using antibacterials everywhere. That is something to ponder on for later, I guess.
“I have seen evidence that second hand smoke has an effect”
Actually it has a positive effect. Think of it as a vaccination process for the lungs. As proof you can simply look at the skyrocketing asthma and allergy rates in children today, which seems to be very much in line with with reduced exposure to tobacco smoke.
In fact the WHO proved that exposure to second hand smoke has positive correlations to the reductions of cancer and other ailments. Check out the DaveHitt link posted earlier in this thread for the actual study.