how comes dragons never attack whiterun (main quest does not count) or markarth. a dragon has never landed in whiteruns market place and starts eating people. why are these two cities dragon attack free???.

Luck, pure and simple. I've had dragon attacks in EVERY City in the game. Some places are just more dragon prone.

thats weird whiterun is the most attacked city from dragons to me it always gets attacked

I've only had Whiterun and Riften attacked before, and only twice. Haven't seen it happen since. The dragon corpse is bugged out in Riften and will random load when I enter the cell and haunt me forever.

Ive had every city attacked. But i heard in a recent update that if you "enter" a city (Like a city that has a gate you have to enter) Dragons will not go in and attack. I cant confirm thats true, but its what I heard.

I've never had a dragon attack IN city limits. Only places I've ever been attacked by a dragon is out in the wild or at Riften Stables.

I have never had a dragon attack Markarth. They love to pick on Winterhold though.