I won't judge why you want to vape. I assume you are an adult who should be free to do as you please.
My daughter, a non-smoker, wanted her own ecig device for her 18th birthday. All of her friends smoked cigarettes, and when "hanging out" together, smoked around her. She didn't want to start smoking, but the peer pressure was starting to get to her.
I remembered that this was the age that I started smoking, primarily because of peer pressure. I reasoned that if she vaped flavored zero-nicotine e-liquid, perhaps that might help her decide to never start smoking tobacco. Seemed like a healthier alternative to smoking.
One year later, and she is still vaping recreationally. Thanks to her, her boyfriend is now vaping instead of smoking, as well as some of her previous tobacco smoking friends.
Her older brother had also started smoking. I tried to get him to convert to ecigs, but he didn't think it was cool. Once my daughter started vaping, THEN he thought it was cool and now he is vaping, too.
I see this as a WIN WIN.
