I am 14 and need to pull the G432 apart a bit. I am not tall

Would not recommend it for children under 14. But it depends on the size of the child's head.
As with the G930/933/935/..., the ear cup distance is given by the headband and if the head is too small, there is too little tension between the ear cups and the headset falls off quickly. In addition, the over-ear cups are very large for small children. My G933 did not fit my daughter 4 and my nephew 10 perfectly. My 14-year-old nephew was able to use it to play games on my computer and I didn't have to worry that it would fall off every time he moved his head.

Yes, from the age of 8 or so I would say....