is it? I checked the dictionary and it doesn't seem like they're doing anything in vain. https://www.merriam-webster.com/dictionary/vain
it's literally the opposite of pride. they're using his name to hide something they're ashamed of
also the opposite, they're trying to use his name in an effective manner to solve a problem
same as the previous, it would have a worth to them
again, they're using it for schoolwork, which is educated, not foolish
is it? I checked the dictionary and it doesn't seem like they're doing anything in vain. https://www.merriam-webster.com/dictionary/vain
it's literally the opposite of pride. they're using his name to hide something they're ashamed of
also the opposite, they're trying to use his name in an effective manner to solve a problem
same as the previous, it would have a worth to them
again, they're using it for schoolwork, which is educated, not foolish