The downside? Dear god have I missed the taste of beer. La Croix and other products don’t fill the gap. There has thankfully been an explosion in the NA craft beer scene in the last few years, and some of them are good enough that I’ve had friends who drink buy them so they don’t have to have a buzz to enjoy the taste.
I’d recommend Athletic Brewing and WellBeing for a first go. The IPAs in particular hold up well.
Edit: Fun thing I've had happen: I got pulled over speeding with an "open container" of one of these beers. The cop became immensely excited when she thought she'd get me for a DUI, demands to see it, I point out it's an NA, she inspects it, and this is followed by silence and disappointment. "Sir, you should probably not drink this while driving regardless".