This morning at the cafe me and another man arrived at the same time to the door. He offered me to go first, but I simply opened the door (outwards) and held it open for him. I'm 26 and he was in his 50-60s, so it just felt the right thing to do. Anyways, in the time I opened the door a group of three kids (18?) were coming, one guy and two girls, and they were just behind. Normally I don't mind opening the door for the next person coming, so I kept the door open, but this kids just simply didn't even look my way. The guy even went in before letting the girls thru. When none of them even gave a nod looking at me as to say thank you I simply said "Your welcome!". The funniest part was the offended look of one of the girls. Is common courtesy just no longer expected? This is sadly not the first time something like this happens to me or to someone near me. Tho I must agree many people do say "thank you", but normally just the older ones.