WTH does secondary info not support templates by nature?

[pdwonline (When a goat is on the net)]

secondary_info does not support template scripts. In some cases an extention can be used (custom_secondary_info), but in some cases that wouldn’t be possible. Why is this not supported anyway by default?

[Sir_Goodenough ((SG) WhatAreWeFixing.Today)]

@pdwonline

secondary_info

This is covered already:

WTH can we just not template every single string in frontend YAML

WTH can we just not template every string in frontend yaml It would be so great, if every string could be template in frontend yaml in every HA card. A general FR. With this a lot of custom card overhead would not be needed anymore and it would be soooo flexible, if I would be able to set icons, entities, titles, etc. etc. just as before or via a template.

Add your vote there.