Janke, Does it matter when an adult receiving SSI or SSDI applies for the "children's" benefit portion? Can they wait until their parents retire or become deceased before applying? Does it get more difficult to prove childhood onset decades later, due to loss of medical records, etc. ?

Also, if someone's application (either actively applying or already receiving benefits) doesn't use the correct onset date of birth, but instead uses a date they arbitrarily choose, such as the current date, or 18 months prior, is there anyway to correct it?

If the OP stated her onset date was birth when she applied for SSI, would SS automatically check her "children's" benefits, like they usually check for SSI and SSDI eligibility simultaneously?

Thank you again for ALL the time and energy you dedicate here.