I have been lucky that I have had good health visitors with both my children. The health visitor I had with my son was good and the health visitor that I have for my daughter is truely gifted at her job.
In the past there were far more health visitors. In our area many of the health visitors have been replaced with nursery nurses and to pay for surestart. Many of the activites at our local surestart centre are frills. Baby yoga is not essential to bringing up a healthy child. Many of the activites are difficult to access for second time mums.
In the past health visitors had time to work with women with postnatal depression or parenting problems. A mother struggling with the terrible twos may well have depression. a nursery nurse does not have the skills to pick this up.