Travel is a great teacher. New places and new faces widen one’s perspectives and views of the world. If your daughter gets to travel, she will become more confident, understand the world better, will be equipped with better communication skills, deeper empathy, and will learn to think on her feet. She will also learn to handle problems on her own and find solutions to them, and will grow as she makes decisions for herself.
Obviously, you will have to make sure that she takes precautions and keeps in touch with you but let her learn to be alert and keep herself safe.
The world is a dangerous place no doubt, but confining her indoors will teach her to fear, while letting her travel will teach her to fight, and it will also teach her to be grateful for the kindnesses of strangers.