ABLE accounts are used by people with disabilities as a tax-advantaged way to save for qualified disability expenses. ABLE accounts can be added as assets indirectly as a 529 account, and requires expenses be marked as education expenses. Having an account type specific to ABLE accounts would be much more straight forward.

More information can be found here - https://www.irs.gov/government-entities/federal-state-local-governments/able-accounts-tax-benefit-for-people-with-disabilities

Contributions to the ABLE account can be tax deductible for some states and distributions from such accounts can be tax-free if used for expenses related to a persons’ disability (varies from state-to-state).