I think the criteria for concern is clear, and it never was about if they personally like of the activity.

The concern is because they care about the person and "being isolated and doom scrolling all day" is objectively destructive and self-sabotaging.

It's not a relativistic “different strokes for different folks“ and don't judge situation.

Being nonjudgemental might make sense if someone you care about is at least happy, not miserable and throwing their life away.

Sure, though I do also think its reasonable for those who love for someone to be concerned if someone seems depressed or similar.

I didn't actually read the OP as a concern focused on what their sister does, but a concern of why she may be spending her time that way.

Regardless, my point was just that doom scrolling, as an example, isn't purpose. If we're collectively losing the what the concept of purpose even is we really are in trouble.

>I think the main point is that it isn’t anyone else’s business how an individual chooses to spend their time.

Nah, it was sarcasm

>Absence some other criteria for concern, “I don’t like that they do this therefore they must stop doing it” is a line of thinking that desperately needs to be eradicated from human culture.

There are other criteria for concern, both empathy and concern for the invididual (other people recognizingt that living that way is destructive) but also concern for the general consequences in a society where people do those things.

There is always a other criteria for concern. Basically nobody understands their own desire to police the behavior of other people as merely doing something that they don't like.