Could someone explain like the actual importance of height?

[zixer]

To make it easier to understand we will use HLTN-LMTN (GLOBAL AVERAGE) as the default assuming each of these heights give this person an smv
5,6
5,8
5,10
6,0
6,2
6,4
6,6

 

[Diddihippi09]

To make it easier to understand we will use HLTN-LMTN (GLOBAL AVERAGE) as the default assuming each of these heights give this person an smv
5,6
5,8
5,10
6,0
6,2
6,4
6,6

6'5 is the best height imo