Welcome back.
Some Somali parents can be strict about certain things (ie. how their daughters dress, the type of friends their kids bring home, doing chores, etc) while being practically uninvolved in their kids' lives. I think these parents don't understand the impacts of peer pressure and the urge to gain acceptance from these peers can have on their young teens. It's important for parents to be involved with their children's education and lives and to teach them certain values that would benefit them. Perhaps it's that these parents assume that their children have these values but it never hurts to have open communication with your kids.
I wouldn't call them jareer wannabes (and the term "jareer" is best left unused). As people raised in the West by African immigrants with very different values from the society in which they live, some struggle to find their identity. The pervasiveness of stereotypes and the misleading notion that "black culture" and "white culture" exists shouldn't be underestimated. We are bombarded by images and messages of what young black men should be like in popular music and in the media. The people we come across can reinforce these messages with seemingly harmless questions like "why do you act white?" or "are they an oreo?". Many Somali parents don't realize the extent of this identity crisis, especially with their sons, and therefore are unaware of the power that a simple talk about forming our own identities independent from outside and possibly negative influences. That is why we might see some young Somali males attempting to fit into society's image of a young black man - that is, someone who wear baggy pants, listens to hip hop, is "hood", uses slang, and basically does not act "white" (ie. well-spoken, educated, etc). Rather than look down upon them, perhaps it would be beneficial for the Somali diaspora if older Somali males chose to become mentors to these impressionable youth. These mentors could emphasis the importance of education and self-respect and provide the youth with a male role model simply by socializing with him. Unfortunately, we don't seem to be proactive enough to have implemented such a program (that I know of, anyway).