Man, it was rough.
At family friends you’d take a break to get some fresh air or a bathroom break, as they smoked indoors and you had to be nice.
At restaurants I would push my parents for non smoking. One time they skipped that option and it impacted me so much I threw up all over the back seat.
They no longer opted for the smoking section ever again.
You are totally right, it’s crazy to think back to it. I was that 12 year old once or twice.
Even more screwed up was there were smoking sections with walls or without. Without… well, it’s smoke. So it’s going into the non smoking section. With walls? It was like an aquarium.