甘(あま)えん坊(ぼう)pampered or spoiled child (spoilt)

末(すえ)っ子(こ)は長男(ちょうなん)よりも甘(あま)えん坊(ぼう)です。

The youngest child is more spoiled than the eldest son. {pampered or spoiled child (spoilt)}

子供(こども)とは、甘(あま)えん坊(ぼう)な生(い)き物(もの)なのである。

Children are creatures who are often pampered or spoiled. {pampered or spoiled child (spoilt)}

息子(むすこ)が二十歳(はたち)になっても甘(あま)えん坊(ぼう)なので心配(しんぱい)です。

I'm worried because my son, even though he's twenty, is still a spoiled child. {pampered or spoiled child (spoilt)}

父(ちち)：「抱(だ)っこして欲(ほ)しいのか？まったく、甘(あま)えん坊(ぼう)だなぁ。」

Father: "Do you want to be held? Goodness, you're such a spoiled child." {pampered or spoiled child (spoilt)}

今年(ことし)で成人(せいじん)を迎(むか)える長女(ちょうじょ)がまだ甘(あま)えん坊(ぼう)なので少(すこ)し心配(しんぱい)しています。

I'm a little worried because my eldest daughter, who is becoming an adult this year, is still a pampered (or spoiled) child. {pampered or spoiled child (spoilt)}