I'm told the visual feedback of seeing the exhaled cloud is an important part of the experience. This followed a few one-on-one conversations with random vapers when I was curious if a product that administered nicotine without a huge cloud would have a market. Think something like an asthma inhaler. They weren't interested.
Back in the 50s there was an antibiotic ointment for scrapes and scratches, it worked very well, but sales were abysmal. The company hired a consultant who determined that mothers didn't think it worked, and the consultant advised adding a little alcohol to the formula to make it sting so mothers would "know" it worked. They did, sales soared.
Trhy Bactine - no sting no stain.
Yes you can vape without a huge cloud. It’s a different method. The big cloud people probably wouldn’t like it.