I say, and with God's help: It is not permissible for a girl to stay alone in a house, even in her own country; how then can she leave her country and be left alone? This is a great temptation for her, and this temptation is greater than any study or specialization. We must consider the interest of our Hereafter before our worldly matters, and we should not be deceived by it. And God knows best.