YOU SAID:
Old people should be put down at 65
INTO JAPANESE
高齢者は65歳にするべきです
BACK INTO ENGLISH
Elderly people should be 65 years old
INTO JAPANESE
高齢者は65歳でなければなりません
BACK INTO ENGLISH
Elderly people must be 65 years old
INTO JAPANESE
高齢者は65歳でなければなりません
BACK INTO ENGLISH
Elderly people must be 65 years old
That didn't even make that much sense in English.