I don't know about Facebook but here in Sweden we have several systems where you need to use Google, and of course accept Google's terms in order to do that. One example is the health care centers and hospitals that uses Google Maps. Another example being the schools that forces the students to use Chromebooks (and apps like GMail, Google Classroom, Google Docs, etc), and Google forms for requesting information about the kids need for after school care.

I do not like that Google get to know when I need to visit the hospital, or collect information about my children's activities in school. But currently we do not have an option.

That sounds like something a class action law suit waiting to happen.

In Brazil, everything uses WhatsApp. Doctors, banks, lawyers. It's almost the sole means of communication over there.

It would be pretty infeasible to live in Spain without WhatsApp. Many phone plans here don't include unlimited free SMS and calls, so quite a few folks just don't receive them. Instead they send messages and short voice memos back and forth over WhatsApp.

that's exactly i was hoping for : no answer. <relief>

we 'd be truly screwed if crappy WA would be adamand for such in any given country, even Putinocchio's, Xi's or KJU's. that country 'd be even more crappier than WA, and all FB-associated, which in turn would be quite an achievement on quite a, literally and metaphorically, negative scale in its own right

It occurred to me after posting that there are likely places where healthcare is mostly private companies / practicioners and most would have no enforced accessibility requirements.