expression, noun
rich kid; person who grew up wealthy
Refers to a young man from a well-off family, often with a sheltered or naive connotation. The phrase いいとこ means 'good family' or 'wealthy background'.
彼はいいとこの坊ちゃんで、苦労を知らない。
He's a rich kid who doesn't know hardship.
いいとこの坊ちゃん育ちだから、世間知らずなところがある。
Because he was raised as a rich kid, he's a bit naive about the world.
A more general term for a young boy from a good family, not necessarily emphasizing wealth. いいとこの坊ちゃん explicitly highlights the wealthy background.
Simply means 'rich person'; lacks the nuance of upbringing and shelteredness.
Compound of いいとこ (good family/background) + の (possessive particle) + 坊ちゃん (young master/son from a good family). The phrase is a set expression describing a young man raised in affluence.