Can we sign up as a family?
Yes, of course!
When you sign up as a Workawayer you can access the host list and contact host families, NGO's or projects directly for 1 year to Workaway and offer your services.
Workaway is a cultural exchange, you offer a few hours of help in exchange of food and accommodation.
When signing up as a family kids do not pay if they are under 18. You can create a couple account and add info in your listing saying that you are travelling as a family. If you are a single parent with children under 18 you can use a single type account.
There are plenty of hosts that receive families especially the ones that have children too.