There are different kinds of addiction. The difference is physical vs. mental.

The best example of this is heroin, which has both a severe physical and mental addiction component, and it's the mental addiction that makes relapse so common.

Mental addictions rewire the brain's chemistry, causing the user to seek and only find joy in the substance. This is a better comparison for social media (albeit not as destructive and instantaneously harmful as narcotics)

Everything you do or even just think about "rewires" your brain to some extent. The difference with addictive drugs is that they do so in a way that bypasses your brains' natural processes. The same cannot be said for "addiction" to games or social media, or other entertainment.

There can still be social ills associated with these forms of natural "addiction" (e.g. gambling), and I'm okay with regulating those ills, but I'm less okay with the courts doing so unilaterally based on their subjective opinions with no concrete law backing them up.