I'd say it's fine to skip lunch as she'll still be having milk and you could just provide a snack instead for her that she can have once you're there? It is unfair that you're travelling so far though
Feed her on the bus x
She’s 7 months old.. I can’t imagine a hungry child turning down their milk because a stranger is around them lol.
At 7 months milk is the main food source so skipping lunch wouldn’t be a big deal and you could do the bottle on the bus. I think the reality is it’s just unfair to put the majority of the travel on you. Is there not a contact centre closer that he can travel to?