A few thoughts on all of this:
I have a 6 point cage in my bucket and a pair of 5 point harnesses. But I also have a blown big block and zoomies. My car looks like (and is) a street driven drag car. Even has vanity plate AA/FA. The two front bars come forward of me and offer some hope if I ever got T-boned.
The roll cage is fully padded anywhere my head might possibly touch it in an accident. Because a steel pipe will split your head open like a watermelon when you hit it.
I see a lot of buckets with chrome rollbars mounted behind (above or below) the drivers head. I figure if you get rear ended, your head goes back & you may get your own blood on the chrome bar. The really low ones that offer no actual rollover protection may be more bad than good
I have tried driving on the street with a crash helmet and its actually a dumb idea. Tho its great protection from bees and bugs, you just cant hear stuff thats happening around you. I would rather be able to see and hear whats going on around me and take the necessary action, than be helmeted up sand miss the chance to avoid an accident.
Sure, I wear the helmet at the dragstrip, but you dont have the periphery stuff going on out there. (No traffic lights, no small kids, no side roads etc)
To get street legal down here, we need to have our chassis welds fishplated and we must have a driveshaft loop on any modified RWD vehicle.
When we built my bucket, I planned to take the cage out when I wasnt racing, as it looks better without it. I have done about 50000 road miles now and the cage has NEVER been removed. And I cant see the day when it ever will be, as long as Im driving the car. Caged in, I feel very safe.