Given the narrowness of the ban (water bottles under 21 oz. on public property) and San Francisco’s recycling efforts (Its trash diversion rate now stands at 80%), I think the ban is largely symbolic.
Think Outside the Bottle campaign, a national effort that encourages restrictions of the “eco-unfriendly product,” was one of the largest supporters of the proposal.
From the link in the details.
That doesn’t lessen what San Francisco did. I mention it because some of the “it’s not enough” detractors aren’t getting the bigger picture.
(Like my OP?)