Our eldest was parent facing until she was too big for the pushchair at about 2 and a half - I loved it. We could chat and I could explain what she was looking at.
There is an interesting article about this here ...
Here's a quote ...
'triangle of interrelatedness' parent at one corner of the triangle, child at another, and the outside world at the third. Secure in the parent's presence, the child looks out at the world, then back at the parent; the parent looks at the world, then back at the child; their mutual gaze acknowledges a mutual experience they've both seen the same bit of world.
There is an interesting article about this here ...
Here's a quote ...
'triangle of interrelatedness' parent at one corner of the triangle, child at another, and the outside world at the third. Secure in the parent's presence, the child looks out at the world, then back at the parent; the parent looks at the world, then back at the child; their mutual gaze acknowledges a mutual experience they've both seen the same bit of world.