DD is year 5 and goes to a primary school with 3 classes per year group.
In her year there are 4 girls with the same christian name. Two of these also have surnames beginning with the same letter, which I'm sure gets confusing at school.
This year, all four girls with the same first name are in the same class! When there are two other classes in their year group, so they could have been spread out a bit more.
AIBU to wonder why schools do this? I remember having 3 Sarahs in my year at primary school and also 3 Emmas and one year all 3 Sarahs and all 3 Emmas were in the same class!