Smoking may be "easier" but it has many issues of it's own. Including added problems from all the chemicals added, and fire hazards if dropped.
I really wish they had e-cigs out when my mother was still alive. While she didn't have the breathing issues my dad had, because of the MS her hands shook really bad. Can't tell you how many times she dropped a lit cig. It got to the point my dad was concerned if she smoked while no one was in the house with her.
In her case a mod wouldn't have worked, as she would have refused to use it, but a cig alike with prefilled cartos, such as the volt would have been perfect.