But weren't we told T4 was not enough to stop the new variant spreading; do we think that may prove to be inaccurate?
It may be true. Comparing the graphs of regional infection rates and age infection rates, there's a clear corresponding drop off with the Ages 2 - school year 11 cohorts. The fact that we'll never see "true" tier 4 (full restrictions on everything apart from schools) as it was imposed after most schools broke up and is unlikely to be around for long after the current lockdown begins to be eased means we'll never know how effective it would have been on it's own.
