One only needs use indicators when there is another road user who will benefit from the act. Blindly whacking them out tends to quickly become a substitute for looking properly, such is human nature.
This must be one of the worst pieces of advice ever dreamt up by these supposedly "advanced driver" organisations.
Back in the day it was nice and simple; mirror - signal - manoeuvre. Using indicators is and never was a substitute for looking properly. The lack of indicator usage has recently become something of a badge of honour because of this "advanced driver" endorsement. Or to put it another way, indicators have become something that only learners and wet-behind-the-ears drivers use.
Personally I am tired of arriving at T junctions or roundabouts and having to stop because there is a car coming from my right which is not indicating, so I have to assume it is going straight ahead across my path. Then the fecker turns left without indicating, into the street I am emerging from...... All because there was no-one behind him, and he possibly didn't see me as I was hidden by buildings on my approach to the junction. In the old days he would (or should) have been signalling a left turn on the approach, so once I had made sure that he was indeed slowing down and looking like he was turning, I could have emerged. That is just one example; I could go on all day about drivers not indicating.....
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