parents should be guided by their children when they grow old

to put, place, set / to leave (something) / (following a て-form verb) to do something in advance as preparation / (following a て-form verb) to do and keep in that state

a hundred million, 10⁸

house, dwelling, residence.

a surname

a place name, such as that of Fujioka City in Gunma Prefecture / a surname

a surname

the masses, the people

(humorous) luxury apartment

recollection, reminiscence