Sil's baby is formula fed and just turned one year old. Our phone conversation:
She: I'm just not sure about switching to cow's milk, I mean, it's for cows, you know...!
Me: But formula milk is made from cow's milk.
She: (stunned silence, and then...) Oh. I just never thought...
Honestly! She's using that brand that says "inspired by breastmilk" on the tin so she didn't know about lactose! Such clever advertising...