[Vocabulary] the father or the grandmother

[englishhobby]

Does the following exchange sound natural? (If, for example, the speaker is 'the mother' who is talking to someone who doesn't know any names of the members of the family.)
'Who collects the children from pre-school in your family?' 'Well, generally, the father or the grandmother do it.'

 

[Rover_KE]

Change 'the' to 'their' and 'do' to 'does' and it's fine.