Part of being hardworking, and probably the most challenging, is slotting it around other obligations.
Anyone can slide off to work and put in a hard days slog.
In fact, many people like to work to get away from the pressures of family life.
It isn't so easy when you have to organise multiple things, which is why a puppy is such a ridiculous, selfish, and probably cruel extra to add to the situation.
Lots of people work hard, and they also put in the work necessary to ensure their children are happy, looked after, and not being left to other people.