This will be a short post.
I feel I have earned a short post, for having posted things of genuine substance all through the holidays thus far.
Here is my short post:
I never use casting times. Never even considered it.
(Thus the poll over on the right here----->).
I know there are many fine arguments for using them, but essentially my unfailing reasoning behind not using them currently in my own games is:
The rules of our current games of D&D essentially organically emerged from games based on whatever version of the rules our friend Craig remembered from when he played 15 years ago as a motorscooter-gang speed-addict metalhead.
Since we didn't use casting times in those first few games--and every game we've played since has been fun--adding them in later would just feel like an annoying burden to the spellcasting PCs at this point.
Plus, without them, I don't have to ever explain the difference between a "round" a "turn" and a "segment" to anyone.