I sincerely hope the source in this NBC News report is wrong. Public statements for months now have been "Pfizer submits EUA data for 5-12 in September, 0-5 a few weeks later" with the expectations that it'd follow the same timeline as previous EUA submittals, i.e. shots starting late September or October. Pushing this back to "midwinter" means those of us with young children are looking at closer to another year before they are fully vaccinated.
Covid vaccines for kids under 12 expected midwinter, FDA official says