Some people like to travel with children, or at least enjoy children’s company because their sense of wonder about the world is contagious. It is good to see the world in this manner, like it is a new experience. Some travellers have this experience whenever they visit a new destination, others need the children to act as a catalyst.
If you really want to experience a foreign culture you need to live more like the locals. This means avoiding the tourist sites, or at least getting them out of the way at the beginning of the trip, and buying food at local grocers and markets rather than fancy restaurants. Having children with you tends to encourage this.
If you want to meet locals having children with you helps. No matter the country most people will strike up a conversation with or about children. This get you a more of a genuine connection with the local population than many other travellers will get. And you probably will get some decent local advice for the conversations too.
Paradoxically, in a new situation amid people you have never meet before, you often find yourself bonding more with your own family. Perhaps we stick to the familiar when we encounter a new experience.
Using a Sydney airport shuttle prevents a lot of hassle with your travel plans, especially when it comes to luggage. Children are much easier to handle on a private shuttle than with public transport; and if you leave in the very early hours they may sleep during the trip. Use a Airport shuttle Sydney relies on, and your vacation can start the moment you leave you front door.