

Most routers from ISPs come with “adult” content filtering enabled by default I think, at least the ones I’ve had have had this on.
Not that I’m doubting you, but is this a common thing? I’ve never even seen it as an option here in Canada, both on ISP supplied devices and on separate routers. Is it just because I’m using cheaper devices, or because on my region?
Currently, no.
The research on social media in general is already spotty and uneven. Most publicly available studys exclusively look at students, often use very small population samples, use exclusively self-reported data, and introduce other methodological issues. Thats not to say that the data is useless (esspecially given the near-unanimous results in the studies that are done) but its very incomplete. We have no idea which features, models, or topics are most problematic nor do we know how they affect different demographics. Given that we lack even that data, there is no way something as niche as the Fediverse or other forms of open-source social media will be covered.