It’s warming my heart to read the lovely comments here about HVs as I am one and do everything I can to support families and only just finished work after a long day being there for people who needed ‘something’ - parenthood can be a very tricky place.
OP - everyone in England is covered by the Healthy Child Programme. All families should be offered this - google it. Those NOT being offered this visit are being failed due to lack of staff, funding etc. Research has shown its huge benefits. Those that don’t need us don’t see what we do for those that do!
The Healthy Child Prpgramme means you have a Midwife then Health Visitor then school nurse out there somewhere for you from birth to 18. Or it should do.....
Health Visitors have core contacts they must OFFER (its just an offer!) and this includes a pre birth visit to get to know you, what you do or don’t want, support you etc before the baby is born.
Some people say no thanks and that’s fine.
But in my experience it really helps. Some people are totally fine. Others talk in depth about issues, vulnerabilities etc that it’s really important we understand. The midwife is gone soon after birth ....and then you have us.
I’m a qualified midwife who then undertook postgrad training to offer a specialist service ie Health Visitor.
I do not care about your building work!! Honestly 
Of course there are shit HVs out there just like there’s shit GPs, teachers, lawyers, estate agents, mechanics and every other job. But just like all other jobs there’s loads of brilliant ones. My own first HV was AWFUL. I called the surgery and demanded a different one and honestly she pretty much saved my life!!! Amazing woman.
If you don’t need us that’s great - you’re doing fine! But lots of people do and that’s why we are there. We don’t know if you need us unless we ask. And that’s why we ask.......
Good luck with your birth and becoming a Mum - and please don’t worry about this! X