I remember my daughter having to provide a copy of HER BC plus marriage license to get them for her daughters.
Really? Wow, I’m glad I didn’t have to jump through those hoops.
The only time I had to show ID was to get my daughter’s social security card. And that was only because the hospital administrator who submitted the paperwork misspelled my daughter’s name, which created a mismatch between the social security paperwork and her birth certificate. Took about three months, and four visits to various offices, to get everything sorted out.