TODAY | January 02, 2014
>>> legal marijuana for recreational purposes. while people lined up outside stores, no everyone is happy about the change. 71st, though, nbc's gabe gutierrez is live this morning.
>> reporter: good morning. this lines were long, as you can see at the 3d cannabis center, there is plenty of supply. meanwhile, all this attention on colorado is firing up a debate among parents nationwide. this morning the novelty may be wearing off.
>> i'm going to go home so i can do what i got.
>> reporter: but the buzz is not.
>> it's basically here to pick up a quarter bag. go home, watch movies and play video games .
>> reporter: a day after colorado became the first state to allow recreational marijuana sales, buyers are euphoric, but critics are weighing in.
>> it's awful. it's foolish.
>> reporter: benefit cord works in the drug rehab program at the university of colorado . he's a recovering addict, himself.
>> the experiment that we're talking about is taking place in my home state where my three kids go to public school .
>> reporter: with pot laced desserts and drinks, they say they are marketing to young people .
>> i think we are inviting all sorts of people, unsavory people that want to be in the drug business.
>> reporter: 20 years ago, more than 70% of high school seniors consider regular marijuana use dangerous. now that's down to less than 40%.
>> if somebody tries it be every the age of 18, one in six develops addiction to the drugs. if somebody waits until after they are 18, the number is more like 1 in 9.
>> reporter: in places like denver, 3d dispensary, there is no shortage of supports.
>> if alcohol is legal, why can't marijuana be legal? i confess people use it responsibly. there is no harm in that.
>> reporter: here at this location, they had more than 400 customers yesterday. they had turned another 100 away because of time constraints. anyway you look at it, erica, this is a lot of weed.
>> yes, it is, gabe. that's a lot of weed.
>> when you are done with that story, you might want to get those clothes dry cleaned.