I tell you my experience. I'm leveling a priest that it's 60 now and since I have also done some instances (and I have full heirloom set with 20% experience gain bonuses) and been very ahead of the guide, I skipped some zones since they were grey quest for me, well it was a real mess. Missing quests because I didn't to the previous to enable the following. Going in a zone then realizing that I couldn't do that quest because I didn't do the starting quest chain, very unconmfortable. In short what I suggest you it's not to skip areas, or make really sure that you do all the quests required (at least) and check carefully the previous zone you'll going to skip to make sure that you won't have problems with struggling finding where to start the quest chain to sync with the guide section.
Selling gold for cash was, for a long time, against the game’s rules. But that didn’t stop large, sophisticated operations from springing up to take advantage of the opportunity to make real-world cash. The outfits that sold gold to players started out by paying foreign workers very low wages to endlessly grind the game, but they later started procuring their gold through quicker and more disruptive methods.
Fifth: As for Azerite Armor, I recommend getting the Chest first from Magini and if you do Vol'dun first, the first piece you can get will be a Head and the final piece from the zone with be Shoulders. That will give you all 3 pieces of Azerite Armor when you leave the first zone which will help out. If you are leveling a different spec from what you plan on playing, (i.e leveling as a dps when you plan to heal/tank) you will receive at least 2 pieces from every zone then 1 piece from starting the War Campaign that you can choose your Main Spec trait for. Pick the traits that will help you level the fastest.
That means, if real players value their time at least as much as gold-sellers value a bot’s time, tokens should never be as cheap as illegal gold. But if it becomes as cheap to buy gold from other players than it is to buy it from gold-sellers, the players who patronize illegal services will switch to tokens. That means more tokens in the market, and therefore, lower prices, so the gold-seller price should impose a ceiling on WoW Token prices.
Something to keep in mind as well is that this will make enchanting materials more valuable, since it is likely most players will now simply scrap their boe greens instead of getting them disenchanted. Also redundant dungeon/raid gear can be scrapped rather than traded to the (guild) enchanter in the run. Less stuff gets disenchanted, meaning there will be less ecnhanting materials, meaning their value will rise. All the more reason to DE rather than scrap as an ecnhanter.