You seem incredibly sure about the health safety of a technology we've had for ~20 years and of which the daily usage has been steadily rising in that time. US kids average 5 hours/day on social media.

By the way heroin use was widespread in the early 1900s, it took decades to regulate it even though the addictive and detrimental effects were very obvious to everyone. And let's not get started on nicotine. See the similarities?