Honestly this doesn't bother me in the slightest. I just started vaping a couple days ago, however I got an Inferno which looks nothing like an analog. If people really want to use them in public, they shouldn't use ones that look like analogs. Not to mention the people that would go out of their way to make something to smoke actual tobacco and look like an e-cig. Those few ruin it for the rest. As far as making it required to be 18+, it contains nicotine which is addictive, not a toy for a kid to be playing with.
* I don't agree with the smoking laws, however I do comply with them and don't push it by looking for "loopholes"*
Almost everyone agrees that sales of e-cigs and juices should be restricted to those 18 and older, at least until it is proven not to cause harm through clinical studies. Minors do not have the same right to decide for themselves what risks they choose for themselves.
With that said, in my opinion the following also applies:
1st - This isn't anymore a "loophole" than chewing nicotine gum. It's not illegal within the definition of the law and the government has no right to ban an activity that is sanctioned as acceptable by the personal property owner, as long as there is no "evidence of harm" to others.
2nd - Not all e-cigs and e-juice contain nicotine
3rd - What a model of e-cig "looks" like should be irrelevant and telling someone else what their PV should “look like” before they should be “allowed” to use it in public is unbelievably arrogant. Why would anyone think they have the right to tell another adult what they should or shouldn’t use? This is America and if it is not causing provable harm to others, it should be up to the personal property owner to regulate what activities they allow on their premises.