Create option to set default format for children

I would like to be able to set up my nodes to have a certain default format for children.

i.e., when I take notes, I want children to be bullets by default.

I have a couple of To Do nodes where I want the children to be tasks with checkmarks by default.

Why is this a painpoint:

On mobile, formatting is generally more painful. I think this is inevitable with the mobile form factor and user interface (touch screen vs. physical keyboard)

However, task formatting allows a useful at-a-glance distinction of what needs to be done vs. what is just a note. Making it easier to keep everything tidy would be quite nice.