Agreed with the others - 5e rules are very clear that the players describe their actions and the DM adjudicates the results, calling for an appropriate ability check only when the requested action has a meaningful chance of failure.
Saying "I look around" instead of "I roll Perception" isn't difficult and I encourage my players to do so, but I don't shut them down if they step out of character like that.
In short, because there isn't an option that fits with how I run the game, but if you want specifics:Since everyone thinks that ... why not reply to the survey?
Isn't that what I said? I don't require "magic words," but I encourage my players to state their actions in terms of the fiction because it is not only more interesting to listen to, but it also makes adjudicating actions easier if there is a question about whether a check is even required and, if so, which one might be called for.As far as "isn't more difficult" it's also not any more difficult to understand to understand that some players don't want to use magic phrases.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.