1. It is stated that he came from a big clan yet their family fall to such absurd tricks. (It's obviously easy to reason out to the elders that its just children playing.) For sanity's sake!!! He's just six!!!
2. The clan rule for a very light offense is too much. (Or maybe their elder are idiots and they don't really know how to defend the young ones.)
3. For the MC's father to be driven to expel his beloved son after a simple trick is preposterous.
4. For a powerful clan to not even protect the son of the clan head.. Is too ridiculous.