Yes, rolling papers do contain crap in them. Heavy metals have been found in most brands of papers, and smoking from a pipe with a bic lighter isn't any better, in fact it's outright stupid when you think of the butane your are inhaling.
But on the vaping side, it's not exactly a good idea to expose your lungs to hot heat for 20 second lung busting hits(which is how alot of people vape with these convection style vaporizers). I also have reservations about some of these cheap vapes, I think there are too many chances of it off gassing materials, in and out of the vapour path.
I think it was Storz and bickle(Only medical certified vape out there) that said the aluminum bowl, and heater in the mighty and crafty are only designed to last a certain amount of time before they start to deteriorate into the air path, but not to worry because the battery will give out before that. But it gives you an idea of how safe these devices actually are long term.
Just. be cautious, vaping is relatively new and alot needs to be learned about the long term effects, on both vaping and the vaporizer, and I think vapes need to be certified in one way or another. Sure it's going to take the fun out of it, but in the name of safety.
Most of us have a portable electronic vape. Yes.