I think the idea is to encourage grown men to stop being big babies; to get out into the world and develop an independent life. In exchange for cutting the apron strings, they will be rewarded with a little pocket money to help out with the rent.
If you want your son to leave home.
Stop cooking with cheeze!
I think the Italian president is an idiot. There is nothing wrong with living with your parents. That way you can be closer to them. If my parents didn't live on the opposite side of the country I'd live with them. This to me this seems like too much state interference.
And of course ... if you plan to be a dependent single for the rest of your life, living with your parents after you turn 30 is a great idea.
If the majority of men are like this ... bit of a concern for the national birth rate, if you ask me.
Maybe the state is concerned that too many +30 men are perhaps not inclined towards women or wives (that should also know how to cook)?