Shops in California can now sell marijuana to customers 21 and older with only an I.D., as legalization triggered by the 2016 passage of Proposition 64 takes full effect.

Some customers lined up for hours to be the first to buy legal cannabis Monday morning.

Others took to social media to share their thoughts on this historic day.

The new laws of course sparked a good number of jokes on social media.

Others took a more serious approach, reminding folks of the rules around consuming and driving, workplace drug testing and being a non-citizen consumer.

Some people outside California looked at the Golden State on Monday with longing.

And predictions about the impact that will come from the most populous state in the nation launching sales are coming in fast and furious.


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