Your petition says many children are scared to go back- but most are not and cannot wait to go back. It's no life for many of them being babysat by a screen and learning online whilst their parents try and work from home.
Parents who don't want to send their kids to school can always home educate them- why shut schools for EVERYONE when only some parents don't want to send their kids back?
However, I would support a petition allowing parents to home educate their children for a while without having to de-register them. That would enable those who want to go to school to go and those who want to stay at home for a while to do so as well.