Curiosity and willingness to learn are a gift.So if you're not GUE trained and you're constantly trying to figure out what and why GUE does something, why?
Three possible causes for not attending GUE training:
#1 GUE training is not economically viable.
- yes, there actually are people that cannot afford it
- the cost of PADI courses does add up, but once you have a couple of them...
- it is easy to criticize this point, if "to afford" is a matter of prioritization, but sometimes there are hard limits.
#2 GUE training is not locally available. See #1
#3 GUE does not train the type of diving you do. Rare but possible.