well I'm urdu speaking but most of my moms friends are punjabis. Punjabi aunties are sweethearts, esp when it comes to pampering their kids, particularly their boys. They cook awesome food, and in general very sweet. However, they are pretty blunt, and at times can be pretty wild/crazy, in the sense that they act like they have no sharam. My moms group of friends are pretty straight, but they have a mix of all the qualities I mentioned up above. However from what people have told me, punjabi people are routy, cook awesome food, at times paindu lol and usually the guys are corrupt, etc. Also culturally they may have certain rasams or traditions they do that probably differ from urdu speaking people. I like urdu speaking people, but I feel punjabi people are more warm at heart. My babysitter was punjabi and my fav aunty who I consider like my mom is also punjabi, so I'm pretty fond of punjabis you could say :) I think urdu speaking people are more reserved and punjabi people more open. Then again this is all based on the people I know and associate with. As for punjabi/urdu speaking people having issues, if you are speaking in terms of guys and girls, I think culturally there are differences and it might be hard to adjust to a punjabi culture especially when you aren't familiar with it. That would be the only reason. I ignore whatever political and stereotype issues because not every urdu speaking person or punjabi person can be generalized to possess the same qualities.