My sims live in a small house on an island and the kids still teleport to school. Although, they do have a houseboat and when it was time for school, the bus was up the hill on the road. This is the bigger island and the school is on the big island. The bus took her a short distance, she ran and caught a water taxi, then the water taxi went all the way around the island, dropped her off at the shore, she ran up the hill, took a taxi the rest of the way to school. It was after 11am when she got there and after that, she teleported. Strange little game, lol.
Edit: What I originally started to post in relation to the thread, is that, I wanted my sim to travel around in the houseboat. There was a sleeping infant, but when the houseboat started to move, the baby popped over to the primary residence where there is a roommate living there. I had to have my sim dock the houseboat and go get his daughter. I tried it again, but the baby was not sleeping, but in her crib and they could travel just fine. Seems to be random, because I tried it again when the baby was sleeping and she didn't teleport to the main house this time.