Why would they still come to Toronto? Food reasons. Keren is a source of yummy food.
↓ Transcript
Panel 1 (Errol, Keren, Zoe, Maya are in the car) -
Errol: "So, Mai Tais moves in with Zoe." Wait, does Keegs use your driveway for parking, Zoe?
Zoe: No. He has his own house.
Panel 2 -
Errol: Ah...Mai Tais could have parked there for her first year. I could have utilized that...
Maya: Oh, that's a good idea.
Zoe: It is!
Panel 3 -
Zoe: And then you can come visit.
Maya: I could come every weekend.
Panel 4 -
Errol: Hello, we have a joke to tell here.
Zoe: You can also come throughout the week.
Maya: We can even drive to Toronto.
Errol: "So, Mai Tais moves in with Zoe." Wait, does Keegs use your driveway for parking, Zoe?
Zoe: No. He has his own house.
Panel 2 -
Errol: Ah...Mai Tais could have parked there for her first year. I could have utilized that...
Maya: Oh, that's a good idea.
Zoe: It is!
Panel 3 -
Zoe: And then you can come visit.
Maya: I could come every weekend.
Panel 4 -
Errol: Hello, we have a joke to tell here.
Zoe: You can also come throughout the week.
Maya: We can even drive to Toronto.