Hello Alan, Mister Micawber, Beeesneees, Mordant, Esl_Expert and other native English speakers,
oxfordadvancedlearnersdictio … ary/coming
comings and goings (informal)
the movement of people arriving at and leaving a particular place
- It’s hard to keep track of the children’s comings and goings.
As for the sample sentence, wouldn’t it be enough to say “It’s hard to keep track of the children”?