As a note from a short conference we just went to, Symposium on Scholarship of Teaching and Learning (Western Canada). About 125 people were there. Organizers said there was no demand from the participants in our district of the national organization, but to try at the head office for a policy. Since the organization is doing outreach that includes the student voice it seems likely child care will have to be included.
There are other issues here too. With cutbacks in educational funding some people had to withdraw as the hotel, travel and event registration costs were too high. As we seem headed to an era of society being an unrelated batch of individuals all struggling alone to survive it may be necessary to form gangs of feral educators traveling in self-sustaining, family group based convoys and let education industry rot in its own cheapness.