You'll notice some countries never light up. Countries that are shaded didn't have information available. Some forbid alcohol consumption of any kind.
The map is fascinating, though the laws are sometimes complicated. India has different laws depending on where you are in the country. Some countries have no restrictions. Others have elaborate restrictions. For instance, in the Maldives, where alcohol is forbidden, tourists are allowed to purchase alcohol at select locations.
Though things can get messy trying to collect all these laws in one place, the map concisely gives a sense of how the numbers shake out.
h/t Laughing Squid
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