Old way of using classes and CI's way - Confused

CI3 wants classes to be named UCfirst, i.e. $this->load->model('User_model'), and with the source code in models/User_model.php.
Once loaded, the model is available as a property, eg $this->user_model, without having to instantiate it.

Your naming confuses me ... I would think that models/User.php would *be* a model for a user.
I might use something like models/Users for the "model" (collection) and models/User for the "entity".


Write the code how you would write it.