Amen - we need traffic circles in most circumstances - not stop signs!!!
For example, here is a stop sign. Would we convert this to a roundabout as well?
Maybe the problem is we have too many intersections?
https://www.google.com/maps/place/610+Martha+St,+Euless,+TX+...
I’d just leave it unsigned entirely since it’s a three way, the incoming traffic has to slow down to make the turn anyway.
I certainly don't want a world where every residential street is a windy suburban-style affair that goes nowhere. That just entrenches car culture and makes it impossible to run efficient mass transit.
You can also have portions of the road that block cars but allow transit as necessary.
Cars should be discouraged and forced to go the long way around as it doesn’t harm them much, and gives an advantage to walking.
I think that one probably exists because people are going south and east (to the two main roads), so it's not clear that either direction should have priority. The junction looks more-or-less the same size as the crossroads to the north. (Which, incidentally, has no signs, just road markings to indicate which road has priority.)
For interest, move slightly south east to see the large roundabout between two main roads, then follow the A4540 north to see two more.
[1] https://www.google.com/maps/@52.4875739,-1.9213084,194m/data...
(Driving over one in a bus, lorry or other large vehicle that can't make a tight turn is allowed.)
Driving over a normal roundabout with curbs and landscaping is unheard of, there isn't a specific fine. The kerbs are usually tall enough that it risks damaging the vehicle. I think it would be considered fairly serious¹, as it shows either a serious lack of attention to the road, or a complete disregard for the rules.
¹ i.e. you get a fine and 3-6 penalty points on your driving licence, which increases your insurance cost. If you get 12 points you lose the licence and have to retake the driving test.