Dating in primary school isn't really dating in the same way older kids and adults think of it. Children that age are still learning about friendships, sharing, and emotions. What might seem like "dating" to them is often more about playing together, liking someone, and maybe holding hands. There's nothing inherently *bad* about having a strong preference for spending time with a particular classmate, but it's important to focus on age-appropriate activities and friendships.
The main concern is the developmental stage. Primary school children lack the emotional maturity to navigate the complexities of romantic relationships. What might be perceived as "dating" could easily lead to misunderstandings, hurt feelings, or social pressure. It's more beneficial for them to focus on developing social skills within a group setting and building healthy friendships.