Think this is a great idea. Thanks goodness we are moving on from Janet and Peter. The latter helping Daddy clean thcar, whilst the former (always in a skirt), helping Mummy make cakes in the kitchen . All in them living in that lovely semi-detached house with garden back and front.
Years ago, when I was fostering young children I had a hard job to find books that had black children and adults in them, or even dolls of that colour.
Children live in a large variety of families, Mummy and Mummy, Daddy and Daddy, etc. It is good for those to be able to have books with which to identify and also for all children to accept the normality of different types of families.
I would also take issue with those who (without any knowledge) say that 3 or 4 years of age is too young to understand the concept of gender, etc. Even in my very limited experience I have known at least three children whoa s young as two have stated that they were actually a different gender to the one that was listed on their birth certificates.
Sorry do not think it is children that cannot understand or accept these things, it is far too many older people, far to set in their ways, and refusing to understand.