Clothing made especially for kids to grow did not become popular until the late 18th 100 years.
Just getting a few casual tops is not going to blow a dent in your wallet if you can manage your finances well. There are also enticing accessories to match the clothing. https://Sbwiki.davnit.net/index.php/Zumba_Clothes_-_The_Best_Way_To_Select_Right_Clothing