The phrase "a sheltered existence" is correct and usable in written English.
It can be used to describe a life that is protected from the harsh realities or dangers of the outside world, often implying a lack of exposure to diverse experiences.
Example: "Growing up in a wealthy neighborhood, she led a sheltered existence, unaware of the struggles faced by those in less fortunate circumstances."
Alternatives: "a protected life" or "a confined lifestyle".
The tremendous optimism of his verse was, in his case, not the product of a sheltered existence.
Iraqis have frequently complained that their leaders lived a sheltered existence in the safety of the Green Zone, its luxury villas and broad avenues, while they suffered from daily violence and abysmal services.
Much more valuable is that it protects you from the perils of a sheltered existence and hurls you outside, to tend your own corner of the river, with no one watching over your shoulder except the pine-covered mountains that will be here long after you're gone.
Often, hesitance and indecisive behaviours are caused by having lived a sheltered existence, or not having much experience to draw on.
It is unclear how formative these events were for Mr. Shahzad, who continued to lead a somewhat sheltered existence, living with his family in a neighborhood of stately homes fringed by palm trees and bougainvillea.
Emily, who has led a rather sheltered existence, finally hears the financial facts of life from a victim of Ferdinand Lopez's disastrous sub-prime guano speculation.
Walking away, Mr. Konchalski laughed and said, "I actually live a very sheltered existence — I know very few people outside of basketball".
The homebody, who always preferred a more sheltered existence than his father, the peripatetic internationalist, has courageously committed to ripping the homeless terrorists from their cells.
Sylvia maintained that she enjoyed New York, yet the more time she spent in the city the more she realised that she had led a relatively sheltered existence.
I came from a pretty sheltered existence and didn't do well in this strange world.
It's about a girl, Lily, for whom a very comfortable, very sheltered existence is not even a given — it's the air she breathes.
