What do Italians eat for breakfast in Italy?

The traditional Italian breakfast (prima colazione) is different from the English full breakfast. It consists of caffè e latte (hot coffee with milk) or coffee with bread or rolls, butter, and jam. A cookie-like rusk hard bread, called fette biscottate, and cookies are commonly eaten. Children drink hot chocolate, plain milk, or hot milk with very little coffee. If breakfast is eaten in a bar (coffee shop), it is composed of cappuccino and cornetto (frothed hot milk with coffee, and a pastry) or espresso and pastry. Other products such as breakfast cereals, fruit salad (macedonia), muesli and yogurt are becoming increasingly common as part of the meal. However the traditional Italian breakfast varies by region and by season. In some regions such as Tuscany and Umbria, in the past, people used to drink red wine (notably Chianti) in which they would dip their biscuits.

It is also very common for some Italians to have a quick breakfast snack during the middle of the morning (typically a small panino, or bread roll).

The traditional Italian breakfast consists of milk (sometimes with cereals), or an espresso coffee or a Cappuccino with a croissant.

ok let's start to say that you can't generalize, every person is different but I would say that in general italians have a very light breakfast, usually coffee/caffelatte (milk with coffee) with biscuits or some little pastry that we call "cornetto" literally "little horn".
Many workers just drink a cappuccino before they go to work, that's all.

Not only Italians, but most Europeans have this Continental-type first meal.

Espresso or cafe latte and pastries. Home breakfasts are usually Nutella on bread with coffee and milk..I lived in Rome many years ago and I stayed in Re Di Roma, not far from Termini....you're going to have the best time!!

Here it go: http://www.eatingitalyfoodtours.com/blog/brunch-in-rome/

Top 6 Brunch Spots in Rome.