Learn something new every day.  I was reluctant to believe my clients who said they have a new SSN for their daughter, adopted in late 2019.  I was especially skeptical when the number they gave me started with a zero, although I know New Englanders have been dealing with that for years.  But I found this from a reliable online source:

The Social Security Administration Guidelines have changed in recent years and allow any child that is adopted to obtain a new Social Security Number after an adoption. Significantly, there are no exclusions for older children or children adopted by grandparents. Also, the mandatory in-person interview conducted when an applicant is twelve or older and applying for an original Social Security Number does not apply to adopted children applying for a new Social Security Number.  However, one of the few remaining exclusions is that adults who are adopted cannot receive new Social Security Numbers. 

https://www.campbelllawpractice.com/blog/2020/7/1/applying-for-a-new-social-security-number-after-an...