The issue is setting limits.
Now obviously banning is easier and lower friction but limiting to an X time per day routine can also help with self-discipline. Depends on the person.
Kids can have the same issue with TV. I had an issue as a kid with books. My parents had to limit my reading time because I would stay up all night under my covers with a flashlight reading.
Many online games are designed to be as addictive as crack to extract as much revenue as possible. Our kid is in the typical video gaming age, almost every kid of her age is stuck in Roblox and some in Fortnite.
Setting limits helps, but more broadly, games that require a monthly subscriptions or buying in-game currency should just be outright forbidden for anyone under 16 or 18. Yes, kids need to learn to recognize and suppress abusive patterns, but these addictive games, together with social media, and Youtube Shorts is destroying their mental health and normal, healthy exploration of the world.
I think parents are also failing in general. It's insane how many use tablets as a pacifier, some give 2 year-olds an iPad to play with. Or setting bad examples like using phones themselves at the dinner table.
But also maybe the parent post and you refer to kids of different ages?
I didn't have access to a computer until I was 9, and then also we didn't have tables and smartphones, so there computer was only available at home as well.
I think below a certain age the limit is fine to be set as 'not at all'.