Non drinker tips

Bottled water is popular in Italy. You can get it still or fizzy. San Pellegrino is everywhere. No one will judge you if you don't drink.

I have traveled with teetotalers. Alcoholic beverages are not the only options you will be presented with in restaurants in Italy.
This topic came up recently. Here is a link to that thread that may give you more insight

https://community.ricksteves.com/travel-forum/food-drink/non-alcoholic-trip

I agree, fizzy mineral water is the way to "go native". Quite refreshing with a meal. And zero calories.

acqua frizzante

My beverage of choice is always water. Italy is one of the European countries in which the default is fizzy water. Be very specific in ordering if you prefer still water, and don't be shocked if a bottle of fizzy stuff shows up occasionally. I've learned always to look at the label carefully before the bottle is opened. Not fun paying 4 euros for something I will not drink.

It is a Hollywood stereotype that Italians drink wine morning noon and night, from birth. They are more civilized than that. There is no expectation that you participate. Tip: learn how to specify what kind of water you'd like in Italian so as not to be confused when they ask; buy soft drinks or bottled water in grocery stores. They don't normally drink coffee with a meal, but after.

Drink Coca Cola.
Although that might definitely kill you.
Stick to water, maybe sparkling if you prefer.

Not a problem. Water (sparkling and still) are everywhere as is coffee. I have not tried ordering juice at a cafe but I’d think it would be available. Juice is always available at hotel breakfasts in my experience, so probably at restaurants too. Soda (pop, coke, whatever) is also available but more expensive and no free refills.

Alcohol is popular, but plenty of Italians do not drink. No one will think twice about your drinking habits.

Beside the water options, we like to pick up iced tea at their grocery store. I think there’s a lemon soda, also.

Morri...... more power to you. All of the above advice is spot on.
The gelato shop will present a couple more risks for you.... starting w rum raisin.... my Italian is not good enuf to tell you what other flavors might contain spirits.

You'll want to be careful about alcohol-filled chocolates as well. These are common all over Europe, including Italy.

I'm not in recovery, but neither my husband and I are drinkers. Never had an issue anywhere - Italy or France.

We generally drink soda (hubby) or sweet iced tea (me) when we eat out, but iced tea isn't an Italian thing, and we learned REALLY quickly that soda is expensive at restaurants - especially with Canada's generally poor exchange rate - that 5 euro pop is about 7.50 in our $ - and at home, 2.99 and free refills is usually the cost. We usually just split a litre of still water.

Handle it the same as you do at home. Nothing is different. No one forces alcohol on you.

You'll be fine........just ask for LOTS of ice with your still water or soda.....