Boys have bicycles, they are free. But she knows her father will not allow her to travel on her own, even if she were posing as a boy. "I can't let you do that. And I don't have the time to walk you there and back.
Los niños tienen bicicletas, son libres, pero ella sabe que su padre no lo permitirá, no la dejará viajar sola aunque se haga pasar por niño. "No te puedo dejar hacer eso, y no tengo tiempo como para acompañarte hasta allá y volver.