But I think that knowledge of securing your computer develops over time as you perhaps make mistakes along the way or threats evolve. Security isn't like an on

But I think that knowledge of securing your computer develops over time as you perhaps make mistakes along the way or threats evolve. Security isn't like an on-off switch. The issue that arises from app stores letting loose and letting people fend for themselves (particularly for an "overlord" like Apple or Google) is that it does nothing to address things like viruses or malware that proliferate due to a large enough population of people who lack that security experience. This ultimately affects the ecosystem as a whole and even those who are particularly cautious. It's like how religiously washing your hands is only going to get you so far in terms of avoiding getting sick when you are surrounded by people who are already sick. Especially now a days where access to personal information can have many entry points due to social networking (e.g. Facebook posts/pictures), unless you limit yourself to a sterile bubble, what effects the ecosystem will ultimately affect you.