@techreport{7g3k5s,
  author = {Gilly, Travis},
  title = {{The Feasibility Era Is Over: Thirty Years of Retail Age Assurance and the Reallocation of Duty in Platform Child Safety}},
  institution = {Real Safety AI Foundation},
  type = {Working Draft},
  year = {2026},
  month = aug,
  note = {Version 0.5},
  url = {https://realsafetyai.org/research/7g3k5s/},
  keywords = {age assurance, capability admission, credentialed-adult failure mode, duty allocation, design defaults, ESRB, Synar Amendment, platform accountability, child online safety, infeasibility defense, age verification, industry self-regulation}
}