Когда покупать школьную форму для Лилы? Советы по размеру одежды, если ей 4 года и она идет в школу в сентябре, нужна помощь!

Hi everyone lilah starts school in September.

Basically my nan wants to buy her uniform two lots but atm shes still in 3-4 clothing, she can fit in 4-5 but mainly tops.

So im just wondering if i should tell my nan wait until closer to the time or just grab it all as she only turned 4 in February she might be in 4-5 by sept 🤷