Public perceptions of marijuana have come a long way. Once a symbol of the counterculture, pot has become part of the culture.
In Colorado, it's part of everyday culture.
Colorado has allowed medical marijuana since 2001, but voters amended the state constitution in 2012 to allow private marijuana consumption for adults aged 21 or older. The first-ever stores to sell state-regulated recreational pot opened their doors on Jan. 1, 2014.
The law has raised serious concerns for parents and those working with kids to keep young people away from drugs.