Showing more attractive stars and making smoking look "cool" and having the ads be surrounded with "hot girls". They aim it to make someone look extremely cool and "rebellious".
The advertisements use famous people or "cool" people and they tell you if you dont have a vape produce you not cool (they are using bandwagon persuasive techniches). As so many teens wanna be "cool" they think getting these tobacco products will make them cool. Hense all of the teens getting these things.