YOU SAID:

He wondered why at 18 he was old enough to go to war, but not old enough to buy cigarettes.

INTO JAPANESE

彼はなぜ18歳で戦争に行くのに十分な年齢であるのに、タバコを買うのに十分な年齢ではないのか疑問に思いました。

BACK INTO ENGLISH

He wondered why he was 18 years old, old enough to go to war, but not enough to buy cigarettes.

INTO JAPANESE

彼はなぜ自分が18歳で、戦争に行くのに十分な年齢であるのに、タバコを買うのに十分ではないのか疑問に思いました。

BACK INTO ENGLISH

He wondered why he was 18 years old, old enough to go to war, but not enough to buy cigarettes.