Dog Fighting is bad tactics.....killing the enemy BVR is the key to survival.
Hit from afar....get your hits in.....and beat feet to do it again another day.
Nothing has changed in that regard since WWI.
Far better to make that one pass through the enemy formation....get what you can and set up for another go where you have every advantage.
What has changed is the technology that allows you to this from a far greater distance and with much more efficiency.
Dog Fights occur when both the Good and the Bad Guys get it wrong.
Air Forces have too few airplanes and the inability to replace them to be able to go out and take losses so it really gets down to being better at killing the bad guys and not risking your own aircraft unnecessarily.
It is not very romantic or macho....but winning is everything....and you have to be alive to Win.