Yeah only time my 2 year old son watches a YouTube video is when brushing his teeth.

I think there's nothing wrong with that at all. Screentime is fine in limited, intentional doses with clear boundaries (and shows that are not complete dogshit, like Paw Patrol). Because we limit screen time, he's very excited to brush his teeth because he gets to watch a short cartoon video. I think it's much more problematic when it becomes a regular thing during the day, especially at mealtime. I see parents at restaurants with their kid glued to an iPad for an hour and it's depressing.