Or.....vaccinate them all now before schools go back, no strike, no politics, no isolation/Covid absence, less long term sick. The way we currently stand the schools reopening will be an absolute disaster, and kids education will be hit even furtherCall in sick. No local authority in its right mind is going to sack a teacher in this climate are they? Then full schools don't have to close, kids don't get punished by unions playing politics, those teachers who've been vaccinated because of age or medical reasons cam continue on as normal and other school staff who for whatever reason they deem applicable to themselves can stay at home either on furlough pay or sick pay.
The kids get to continue their school education and social education, everybody 'wins'.