Just musing, because it's a situation we might be facing.
DD1 starts secondary in Sept and after much anguish we have made our choice. DD2 may follow her there, but will also have the option of a different local state school with a dance section (her thing).
DD1's school is in a deprived area, but offers options that suit her, whereas the one DD2 might go to has a privileged intake. So they are socially very different.
I'm not sure if this matters, but the idea does vaguely bother me. Would be interested in anyone's thoughts and experiences.