Background: I haven't used weed in decades, I have no personal interest in its legal status.
I can't think of a single bad thing that has happened. People are more open about smoking, you can smell it in the street sometimes. I live in a tourist destination, there are ads everywhere for dispensaries. I assume getting high is at least part of the attraction for visitors.
Also, I assume it has had a negative effect on illegal drugs - why bother? - but I wouldn't know anyway.
Yes, I supported it at the time, have not changed my view.
I have two cats. They have taught me: "you do you":
Lizzie sweeps the floor around the food bowls with her paws after eating. One can't be too neat.
Emma collects little rugs and rags at her favorite scratching pad. I really can't think of a motive for this.