Why do family members know when they buy tickets?

The reason why the ticket travel will be known to the family may be because:

1. You and your family have a relationship of mutual care and communication, which is caused by the care and love of family members.

2. You used the same account or payment method when purchasing air tickets, resulting in the purchase information being shared by * * * *.

Your family often pays attention to your itinerary or travel plan, so they know that you bought a train ticket.

If you want to keep your travel information confidential, you can choose to use personal account or private payment method when purchasing tickets, or communicate with your family and tell them the travel information you want to keep confidential.