I would never say having a baby is easy. On the contrary! But when you have an only child, the focus is simple. There’s only one tiny being to look out for. You can drop everything else for the sake of that tiny being and feel justified.
Dishes? They can wait. Laundry? Whatever. Errands? Hopefully you stocked up on canned goods. Everything else can be put on the back burner if your baby needs you.
But when you get pregnant with your second, you have to start juggling! What were your concerns when your first child became a sibling?