There're tradeoffs, pros and cons to social media and gaming, but framing it in an addiction narrative isn't helping matters. This is what led many Chinese people to put their kids in "camps" that used Electro Convulsive Therapy to "fix their internet addiction". This is born of ignorance, and the addiction narrative.
I think elements can be intuited, and more studies done, but when you're bashing the cheapest forms of entertainment and social contact, and safest to boot, as addictions... that's just ignorant.
What?
You don’t allow your kid to go outside or hang out with friends face to face? You prefer his/her social interactions are all intermediated by a computer network? This seems like a very strange and dystopian preference.
Do you actually have a kid or is this hypothetical?
Arguably the only ethical way of removing external social conditioning might be to find a regional social setting which lacks that specific element in order to evaluate the statistical impact by comparing results that should be similar between the two environments.