kids most of the time don't want to speak during assessments ...you're being dragged out to some place and some weird woman in staring at you to "perform" ...even when the HV goes to the person's house they'll have a degree of reservation unless you've got a good rapport with the family/child (not with most cases)
My daughter yaps her brain out at home or with other kids but when she had her school report the teacher said ..."she's very quiet..is she like that at home" Phil and I nearly fell backwards out of the tiny chairs.
I've seen a few reaaally good HV that connect with kids excellently and I've seen some crap ones too.
I tend to follow the rule "whoever spends more time with child knows more about their child than me I'm there as a helper/facilitator"
like I've said if they think it's a problem they would not be "asking"....some places are really on the ball some places are just covering their arses since the Climbie report.
I sometimes get amazed how one area do things one way and then you do another placement and it's totally different so you have to "re learn" a different process of care....all to do with staffing , budgets and how some wards are more governmentally affluent than other...*sigh* it's confusing sometimes