We had the same experience as Cybertwin although didn't do the home visits, we'd try to find out things at the pre arranged beginner sessions, it was great to involve parents who were keen though so we'd jump straight in and ask them about joining the 'helpers rota (after their child had settled) & the fundraisers committee
If it were my time over again I'd send out a 'we did this together' sort of document .. 'who bought my last pair of shoes & who choose them'.. 'Collect and name/glue/draw around/ three leaves, where were they picked up from', 'what colour is my toothbrush, when do I use it', what does everyone like to have for breakfast ?
Less what the child can & can't do & more about preferences and what they enjoy doing as a family..
Have you asked your current parents about what they'd of wanted to recieve before starting ?