What is the purpose of idealized models in physics?

Idealized models are simplified versions of a physical system that would be too complex if analyzed in detail.
Idealized models omit minor effects and focus on the most important characteristics of the system.
Idealized models are used to predict the behavior of a system, and the validity of the predictions is limited by the validity of the model.
Idealized models are always accurate and precise representations of the physical system.