I would like for Custom Forms to not automatically select a dropdown option as some of these fields are not required. If a user does not change the dropdown to nothing then it shows this data on the form that they filled out this section even though they didn't actually select it.
I have to agree with Julie, it seems very intuitive that if no default value for the field selected, then no default value should show when viewing the form.
Not selecting a default and then having the first value in the list populate by default is suggesting a value to the person filling out the form.
As a work-around I've had to use radio buttons, but the forms don't look as nice as they would with drop down lists.
If I add the Select One field, and a user does not change that value - there is no alert saying that you need to fill in that field. In fact, any field with options can just keep the default answer as if the user filled it out.
This seems like a bug to me. If a field is required, I would think you need to select one of the none default options.