I’ll be DMing some more 5e soon and I want to take the opportunity to try some different ways of playing (I’ll post my own suggestions as comments so they can start their own discussion threads). What alternate rules have you tried that you thought worked well? They can be larger changes to the game or little QoL tweaks (though if you can respond to the suggestion with “at this point just play [different game] instead” then that’s probably more than what I’m looking for!)
My concern with that UA was that powergamers would try to keep doing mundane actions to generate more inspiration, though to be fair I don’t think anyone I play with would try that!
As a DM, I decide when an action warrants a roll.
Actions that don’t actually carry a risk when failing don’t fall into this category.
So no, trying to pick your training padlock won’t net you a roll. Trying to pickpocket in the marketplace will, but there’s some definitive consequences attached to failure.
Fortunately, I’ve got a table of rather mature players, so this isn’t a problem to begin with.