Whopity you seem confused by the syllabus, the prime reason for teaching steep turns is to teach a precision exercise, there is nothing in the present syllabus that calls for collision avoidance turns nor is there in tbe skill test.
The skill test calls for a steep turn through 360 degrees-this isnt a collision avoidance turn!
The skill test also calls for a a steep gliding turn not below 40 degree angle of bank
A student ready for a licence skill test should be able to demonstrate a steep turn at 500 ft following a good lookout, and used to be conducted as such on the UK PPL skill test as part of the low level section.
Standard Doc 19 (skill test) mentions a steep turn in a
gliding configuration at low level and again this is not for collision avoidance
However I certainly teach collision avoidance but it nothing like the turn called for in the syllabus and test, its an abrupt emergency turn right at max rate for 90 degrees