Would something like Zum work for you? https://ridezum.com There are a few other services like this too. I'm not sure how much it costs but the main idea is they employ drivers who are also child care professionals, so they can pick up kids and watch them for a few hours after work. I'd also check if the school has aftercare or partners with an aftercare program of any kind. If they don't, maybe your nanny could take public transit or a cab to pick up the child?
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