My first time may be when I'm sixteen (next month). What age do you feel is appropriate for people to start smoking? Would love to hear everyone's opinions 8) Some feel that 16+ is great, others strongly believe that 21 is the 'correct' age to smoke pot. Others would argue 18. I believe 16+, and I'm not just saying that because I want to try it. I understand why people feel 21 is appropriate because the brain is fully-developed. But I haven't seen any research that shows pot "stunting" brain growth.