What is so difficult about running dedicated neutrals
It depends on the job.
The types of jobs I work at generally have homeruns in the hundreds of feet and many times 100s of circuits.
Using correctly wired multiwire branch circuits does the following for me.
1)Use less matrial, copper, cables and EMT.
2)Reduce the number of current carrying conductors in a raceway.
3)Significantly reduce voltage drop.
4)Reduce the number of terminations.
There is also plenty of office furniture (office cubes) that come pre-wired with multiwire branch circuits. The only way to code compliantly supply an existing multiwire branch circuit is with a multiwire branch circuit.
It is 'my license' and if I can not safely wire a multiwire branch circuit I have no business having a license.
Bob