I wish authorities would punish smoking in public areas more aggressively. I'm so tired of inhaling smoke or vape clouds when walking the streets or at bus/tram stops. Theoretically you are not supposed to smoke at bus stops, but it isn't enforced (EU/PL). Entering an office building means inhaling poison, unless you can hold your breath, because there is always a crowd of people smoking.

Aggressive laws and enforcement would do wonders, and also encourage potential quitters.