And what's your next move once you explained that and still find them "escaping" for hours in these meaningless apps? Do you have children? How many being teenagers?
Can you explain in a "soft kind manner" to an addict that they should just quit? You can fight it pro-actively or re-actively. I prefer the former as, at least, prevents the addiction from even forming.
Please identify a smoker in your close circle and explain in a "soft manner" to them how that thing causes cancer, lowers life expectancy, increases heart rate and all the jazz that we are sure of - scary stuff. Report back if they quit.
I cannot be in total control and I do NOT want that but, at least, I'm not putting cigarettes on the table myself because that's what this is.