Dad is so sad because he can't bear to leave the child. At the beginning of college, you must often see such a scene. In airports, high-speed railway station and railway stations, many parents can't help crying at the back of their children. Parents are so sad because there are too many disappointments to their children. Tears are mixed with many emotions, some are reluctant to let the children leave, and some are afraid that the children can't take care of themselves when they live outside. It can be said that tears contain parents' love for their children.

Maybe some netizens will feel a little fussy when they see this father crying. Just going out to college, it's not like you can't contact without coming back. But in fact, this kind of parents love their children, and people who have no children or have not experienced this parting moment can't understand it. In some people's eyes, there are moments of goodbye after separation, but now that transportation and communication are so developed, we can meet whenever we want. But for parents, what they think at the moment of separation is that children have to face this unknown world alone.

They may face a lot of troubles in places they don't know and may be bullied by others. At this time, they can't help but bring their children into a more difficult and difficult situation. At this time, parents will be very worried that their children can't take care of themselves, and there will be various problems, so there will be a sad mood.

I think this feeling is easy to understand. You can imagine, if a person you love very much is leaving you, will there be a lot of worry and disappointment in your heart? In the face of people we cherish very much, we often preset all kinds of troubles they may encounter in advance. At this time, there will be a strong sense of reluctance and cherish, and then tears will flow down.