Thank you for the feedback.
As already mentioned, showing the characters height has been available since CC3. You can choose between feet and centimetres in Preferences (CTRL+P) and toggle on and off using CTRL+F.
Please also do remember to post all suggestions in the Feedback Tracker. The tracker is monitored directly by the relevant product teams and is the best way to get feature requests considered. In addition, it allows other users to support your request with the most requested suggestions normally getting priority.
To use the Feedback Tracker, please click the link below.
Thank you.