From a 
press release:
Today, the Social Security Administration announced a large step in a
 multi-year effort to simplify processes for people who are applying for
 Supplemental Security Income (SSI) by starting to offer an online, 
streamlined application for some applicants starting in December.  SSI 
provides monthly payments to people with disabilities and older adults 
who have little or no income and resources.
            The initial step – known as iClaim expansion – aims to 
establish a fully online, simplified iClaim application that leverages 
user-tested, plain-language questions, prepopulated answers where 
possible, seamless step-by-step transitions, and more.  The online 
application aims to reduce the time spent applying as well as the 
processing time for initial claim decisions. ...
The rollout of the iClaim expansion will generally be available to 
first-time applicants between 18 and almost 65 who never married and are
 concurrently applying for Social Security benefits and SSI.  A goal of 
the second phase – currently targeted for late 2025 – is to expand this 
to all applicants. ...
    This rollout is quite limited -- concurrent claims for people who have never married. Why is it limited in those ways other than to hold down the number of claims filed in this manner?  It's like they want to say they're doing it even though they're only barely doing it.