bored@work-
You don’t seem “plain stupid” in the least.
You appear to be a baales chesed to a commendable degree.
Forgive me if I worded my thoughts in an overly strong manner, but I was expressing concern about the potential risk.
As is often the case with us older folk, when I was a young bochur I did not always practice what I now preach, and often gave lifts to frum people in Flatbush, Boro Park and the mountains. B”H there were never any problems, and the overwhelming likelihood is that you wouldn’t ever have any either. Nonetheless, it is important to recognize that that risk exists.
With the (hopefully) added wisdom of years, I am now saying what I suppose my parents would have said to me.
Also, there is clearly a difference between a woman giving a lift to other women or girls, or giving a ride to a man.
Of course that is not to say that no one should ever be offered a lift – a few years back my wife picked up a frum man who was being pursued by a group of shachorim.
My opinion on this is not halacha-based at all, but rather on keeping onseself safe – you may want to ask your parents their thoughts, rather than a rav.