No, you carry a license now as a medical card. They are very easy to obtain and this is where the state is making their money. Fees, taxes, etc.. In January, we will have both medical and recreation dispensaries. The rec ones will have high taxes and fees associated, but you will not need a license. If you are 21 and a resident of CO, you can walk in like a liquor store. It will be much more to purchase items than at the medical dispensaries, but many people don't want to go through the process of getting the medical license.