TTT, mumofhelen, no one on this thread was remotely discussing what parents do at home with their children.
They are responding to a thread on what children do at nurseries.
mumofhelen: "No nursery or childminder can 'beat' or 'better' a mum who can do the above list. A mum's one-to-one attention is certainly the best for under 3s."
Oh dear, who was comparing whether being at home with mother is better than being in a nursery? I hope nothing in this thread made either of you, if you stay at home, feel redundant. Because that is not the intention of any of the other posters, IMO.
I think it is fantastic that my positive experience of nursery is replicated by so many others. It is an additional dimension to my dcs' life. They have time at home with me and dh as well, before they go to nursery/school and after they get back as well as on weekends and holidays. The varied experience is great for them, and they have blossomed at nursery. But that is just them.
I never worry myself whether they were be better off or not at home with me. They get the best of both worlds and a great social life. In your case, your dcs are thriving under your arrangements. Hence, I don't think there is any concern at all or need to tie yourself up in knots comparing which is better.