I thank everyone for their replies.
Unfortunately we will have to cancel our return back to Thailand.
Devastated doesn't even cover how we feel.
However, the anxiety of travelling with our children with the possibilities of something going wrong would make us very irresponsible parents. We could catch covid, be asymptomatic, but still have weeks long in a hospital. This is asbolutely the correct procedure, however, it would be a nightmare scenario to place our children into. We have no relatives or close friends that are currently in Thailand (most have left).
I will be emailing the school i planned teaching at, and the school my children have studied in for the past few years that we will not be returning.
Beyond devastated. All that planning, visas, hotel bookings, stress of booking repatriation flights, Certificate of Entry, insurances. We had even began packing making all arragements. Happily sat watching youtube videos about how great life in Thailand would be! We simply got carried away with returning to Thailand, to anticipate this scenario. It was only after reading on these forums that the scenario even hit my head. I guess my motivation to post on here was to get some replies telling 'it will be okay, nothing will happen'. But the reality is thread bare.