I had to bring up and push the pursuit of a CI, no medical personnel I encountered -- until I actively got a referral to an ENT with experience in CIs -- even brought it up, which is sort of odd, in retrospect.
But I ask, because my dad and mother in law were/are both severely HOH (very late deafened) and over decades, they had never come across anything BUT the medical perspective. Both hated their hearing aids passionately, but considered it a medical necessity, like taking bitter medicine. They had no knowledge that there even was a Deaf culture or another perspective. Both were very surprised/baffled when my husband and I gave very serious consideration to NOT getting CIs for my daughter while we were weighing options.
[updated to note that neither, however, had even heard of CIs before our research began, and I had only heard a brief mention on a radio program, but had no idea what a CI did, for whom it could be useful, or how it worked].