I also would not make any comment, it could go wrong.
It would be awful if there was bad feeling prior/during the visit.
And difficult to resolve when so many miles are between you.
It is also very possible when DD is with you, and you have some nice chats, that the subject of only 3 days may arise quite naturally.
I would feel as you do, but wouldn't make an issue.
Young people ‘expected’ to engage with government's new work support plans.

