PECS
Assemblies are compulsory as is a daily act of worship, mainly Christian in nature.
However if you are keen for your family to grow up with a faith then there are 100s of churches to go to!
Sorry but that’s not true. Unless it is a particular faith school then assemblies are not religion based. They are about school community, news, stories, issues, showcasing work etc. Religion only comes up when it is a particular festival and then all major religions are included.
Any non-denominational school running an assembly with a Christian bias are poorly managed and will be in hot water if ofsted get wind of it.