Tonto, dunno who "we" is but around my metro area, public drinking is rather tightly controlled.
I am not really aware of the laws around walking down a public sidewalk with a beer in hand. It is certainly gauche but a done-thing to sit at a bus stop and have a Fireball or two.
However, any drinking establishment that serves alcohol will stop you at the door and won't permit anyone to carry drinks outside of their premises. That's a strict thing. My apartment community bans drinking in walkways and stairwells, which was probably done more by non-residents than my neighbors. So there are a lot of bans on public drinking, even if it is not blanket-outlawed.
A couple of major developments at the shopping mall, though: traditionally all American movie theaters were dry, but that rule has been relaxed, and even the major chains are serving alcohol now. At the mall there has been instituted a "sip & stroll" policy, where designated bars can serve you a plastic cup, and you can roam around the mall with drink-in-hand, as long as you observe the borders of it, where you can't walk into the parking lot or off-premises with your booze.
In general, I have seen many liquor-related laws be relaxed and lightened across my county and state. It seems that there's a general lack of will to crack down on the demand-side, when there is lots and lots of profit to be had on the healthcare-side, where you will get a diagnosis and medication and treatment, whether that is IOP or in-patient, so why not encourage more drinkers to overindulge? Broken window fallacy FTW!