Yes we "ALL" hope it is healthier for us.... all we know for sure right now, is we've given up a bunch of stink, and we've replaced the absurd number of known cancer causing ingredients in cigerettes,, for hopefully something much healthier.
No, I listen to my body and my body has made it clear that vaping
IS healthier for me. It's pretty obvious, my lungs are clear, my skin is softer and more elastic, my chest doesn't hurt now that I no longer smoke. In fact, I've experienced all the side effects that are reputed to be caused by quitting smoking even though I started vaping. I can taste things, smell thing, I don't cough, and I can chain vape for hours and hours and still feel ready to run a marathon.
If you're talking about unknown side effects to vaping decades down the line then fine, but we also don't know what taking lose dose aspirin does to the human body for decades either, or drinking caffeine for decades, or using cosmetics on our skin for decades, or breathing urban smog for decades, or handling plastics for decades...
Autism *might* be caused by mothers who don't eat enough saturated fat. Alzheimers *might* be caused by exposure to sunlight every day for 50 years. No one knows for sure but some hypothesis's are plausible and some are... not.
Product testing doesn't conduct research studies for decades before deeming a substance "safe" for consumption. A few months of testing is all you get. If a product doesn't cause a problem in the majority of test subjects it is deemed SAFE and gets a stamp of approval from the FDA. Let's not forget sometimes they are wrong (DDT, Red Dye #7, DMSO, any product named in a late night TV lawyer group settlement participant fishing commercial). Any substance we encounter in our daily lives could be killing us slowly. We don't know. The FDA doesn't know.
But let's get real. No one is going to live forever. We all take a risk when we leave the fortress of solitude aka mother's womb. You calculate your risks and make smart decisions in your personal pursuit of quality of daily life.
Ps. In the spirit of this thread, how crazy would it be to tell a dieter that they are fooling themselves when they think they kicked their food addiction because they still consume calories.