I am not. I do not believe myself competent to solve the parenting problems of a stranger on the internet. Rather, I am trying to bring more details of the anecdote you shared into the discussion.
No, you were implying that I didn't provide you enough information to convince you personally that my daughter was actually exhibiting addictive behaviors.
Watching YouTube videos is fine. Seeking solitude is fine. What defines addiction is not what your behavior is, it's whether or not the behavior is disrupting your life. So remarking that it sounds like she just wants to seek some solitude is irrelevant. It doesn't matter if she was "just" seeking some solitude or "just" using some drugs or "just" gambling or "just" shopping. It only matters whether those behaviors are disrupting her life. And I've made it clear that was the case by using language that includes the word addiction.
You haven't posted a single comment that makes me believe you've thought about why these things are happening rather than that they are happening.
To explain why the "why" is so important... I know someone that does amphetamine about twice a day. They have real trouble if they go too long without taking any. When their supply starts to get low they will drop anything on their calendar to make sure they don't run out. They also have a prescription for adderall, which their doctor can only fill a month at a time, and when they miss a dose their diagnosis comes roaring back in and their intellectual performance collapses.
Alternatively... I assume you're at least relatively technical. When was the last time you fixed a bug without first trying to find a root cause for it? Even if you didn't find one, fixing a bug by patching over the symptoms, without ever figuring out why it was happening?
Anyway, for all that "she's clearly addicted" and "she has panic attacks if she doesn't watch enough youtube", you haven't posted a single mention of your daughter's thoughts or motives or reasons. You talk about her like she has no agency whatsoever. Mandatory minimum daily family time that just happens to be a nice round number of minutes, "it doesn't matter what the explanation is", comparing a desire for solitude to drugs, etc. I'm going to be completely honest, you haven't done a good job convincing me that her behaviors are even maladaptive.
What videos does she watch, why does she choose those videos, how does she choose them, and why did she decide on that method? Why does she think she chooses those videos? Can she explain her process for choosing those videos? Why does she think she enjoys those videos? How much youtube does she think she needs to be watching, how did she choose that amount, and why did she choose that amount that way? What would happen if she didn't watch enough youtube? Why does she dislike that outcome? Why does she think she dislikes that outcome? Are there any videos that're more important than others? Why does she think they're more important? Why does she value youtube over family time? Why does she think she values youtube over family time?
Watching YouTube videos is fine. Seeking solitude is fine. What defines addiction is not what your behavior is, it's whether or not the behavior is disrupting your life. So remarking that it sounds like she just wants to seek some solitude is irrelevant. It doesn't matter if she was "just" seeking some solitude or "just" using some drugs or "just" gambling or "just" shopping. It only matters whether those behaviors are disrupting her life. And I've made it clear that was the case by using language that includes the word addiction.