My father is left-handed, but his parents told him to use chopsticks with his right hand when he was little. He still holds his chopsticks awkwardly because of it.
こんにちは！
ご連絡ありがとうございます。
『箸を持つのは小さい時に右に直されたので、持ち方が未だに変です。』は、いくつか言い方が考えられますが、例えば、
My father is left-handed, but his parents told him to use chopsticks with his right hand when he was little. He still holds his chopsticks awkwardly because of it.
とすると、『父は左利きですが、小さいころ箸を右手で使うように両親に言われました。そのため父は今でもぎこちなく箸を持ちます。』と言えます。
tell someone to で、『人に～するように言う・命じる・忠告する』と言えるので、『なおされた』というニュアンスを伝えられます。
参考になれば幸いです。
"My father is left handed but when he was little, his parents made him use his right hand to hold his chopsticks."
"So now he holds them wierd."
"My father is left handed but when he was little, his parents made him use his right hand to hold his chopsticks."
"my father" 「私のお父さん」"My dad" も言えます。
"is left handed but" 「左利きだけど」
"when he was little"「小さい時に」
"his parents" 「彼の両親」
"made him use ~" 「～を使いさせた」
"use his right hand" ｢右手を使う」
"to hold his chopsticks" 「箸を持つ」
"So now he holds them wierd."
"so now" 「なのでいまは」
"he holds them wierd" 「持ち方が変」
日本 
オーストラリア 
