Would you say something?

My friend is ALWAYS hot, even in 20°F weather she will be wearing a t shirt.

She has 2 kids, they’re three and 6 months old. The issue is, since she’s always hot, she dresses her kids like she does herself.

Last week it was 35°F almost every day and she doesn’t think she should turn on the heat in her house since she feels warm.

And both her kids are wearing just a t shirt and diaper and the baby is wearing a onesie. I’m like aren’t they cold?

And she says no they don’t act like it.

But they HAVE to be. How can a baby not be cold when it’s 35°F?

How would you say something to her that she needs to dress her kids more appropriately?