One way that the vaping industry is following in the footsteps of the cigarette industry is by trying to attract
as "replacement customers" for those they lose.

young people

Explanation:

I say this because the industry already targets young people as buyers (even though it's illegal) but many ads show young people smoking and acting and feeling cool, or appearing popular by doing so. The industry also mistreats their workers, so in one way it's like Mc,Donalds, it's a horrible company that mistreats their workers, but they get so many employees still because there is always going to be someone looking to make a quick buck. You know what I'm saying?

answer: i would say the brain but it seem that you have a brain.