My 15yr old son is in a long distance relationship with his 16yr old gf. She lives 4 1/2 hours away from us. Before now me or my husband have always taken him . But hubby now works nights so hard to fit it in. He wants to go see her alone by plane or train . He has never traveled anywhere alone or with mates. His a stay at home guy normally. My question is would u let him go alone. Train is 2 trains 4 tubes and walking in the middle . Flight is train to airport then flight then train to get to nearest station then bus ? We have said no at min as he really has done no travelling not even locally alone