When people speak of hijab its often synonymous with the headscarf not the holistic view of it all including how one conducts themselves.
Also, not all Somali families were brought up with it. I was not. My mother didn't wear it until she was 40. Obviously, if it is a deal breaker to someone (which most of the time it is) don't even bother with them. You have your standards, a certain way you were raised and you shouldn't have to align it with someone else who clearly isn't on the same page at least attire wise. Most Somali women are hijabis anyway so this shouldn't be a point up for discussion.
What I do find odd is insinuating that a woman without a headscarf is some how engaging in vice (other than not wearing it). You wouldn't believe how many nimaan are shocked when I tell them I don't even date, never committed zina, don't drink, don't smoke nor do I take any over the counter medication (haven't for 20 years) and the like. As though my intrinsic values must be indicative of attire alone (even though there is some correlate). There are tiers to the headscarf just like there are tiers to women who don't wear it. No one cares for nuance though. That's what I find more troubling.

Its like they also expect you to exercise your options due to physical attractiveness and are gob smacked when that couldn't be further the truth. Men are very unique creatures. Hence, why I usually stay clear from them. And mostly engage with people for professional or academic purposes.
When I do where the headscarf (I'A) I won't pursue these men who think I'm only wearing it for them or that there is some nefarious past I'm trying to cover up. Nope. The last thing you want in your life is a paranoid or controlling man that is ego encapsulated and can't even trust you. Even when you prefer to lead with authenticity. Why mistrust someone who puts on the headscarf even if its later? I find that very odd. Shouldn't the goal be to promote it?