Widget Object, Construction Event

Development Programming & Scripting UI
1
  1. Why are the Native Widgets just found under Objects?
  2. Why do thay have no Construction Event while User Widget have a Pre Construction Event.
    I Ask this becouse Named slots are obviously not a good solutions for Grids with custom behavior. And ther is not a single event in the native Widget classes that autonom triggers, Even if the style and stuff have to be triggered on construct.