DWI is a broad limitation on the use of any substance that impairs its user while driving. Texting is called "distracted driving" in some states/countries. The

DWI is a broad limitation on the use of any substance that impairs its user while driving. Texting is called "distracted driving" in some states/countries. The drugs can be made legal, the consequences would still be the same. Except in cases where someone smoked cannabis last week and it still shows up a week later as metabolites, which is only a problem because the substance is illegal in most states still.