I actually tried to make grated daikon with honey when Skipbeat's MC made it and honestly it only edible for me with Japanese daikon, and with the young daikon that still taste mild, other types of similar daikon or older daikon stings the heck out of my throat though
I get she's concerned for her grandson but I'm sure she wasn't reincarnated to be a watch dog for him Like go live your life while still having your very granny like personality the stories cute as it is without her grandson being involved