WTH - Why are custom entity attributes static?

[TNT_Larsn]

Custom attributes on entities should be dynamic and editable via templates etc. like all other attributes.

homeassistant:
  customize:
    person.me:
      - my_attribute: myvalue 
      - my_second_attribute: 
        - mysecondvalue_one
        - mysecondvalue_two

This has been a FeatureRequest back in 2019

Request: Give the ability to add attributes to "People" entities

The way I’m imagining this working is in the /config/person menu, you can click to edit a person and it brings up the normal menu it already does, but there’s another tab where you can specify templates to act as attributes for the person. Being able to combine all these sensors from other integrations to my person would make me very happy [people attributes-01] [people attributes-02]