by Shmooglavoue » Sun Oct 04, 2015 4:38 pm
I'm assuming you are referring to fishing/cooking/first aid.
First aid should definitely be picked up. Being able to heal yourself a little extra in combat is useful for all classes in both raids and battlegrounds. It shouldn't slow you down that much while leveling, just use the cloth that you'd normally get from killing humanoids and you'll be fine.
Cooking is good to have but it's usefulness varies depending upon the class you are playing. For classes that can't heal themselves with spells, pick it up. Having a good supply of food that provides stats as well should speed up your leveling speed if anything, especially for warriors. For other classes it's still useful for stat buffs, notably the latter ones that give you things other then stam+spirit. Since you get most of your food from killing beasts, it shouldn't slow you down too much.
Fishing can provide a nice complement to cooking, but this one WILL slow down your leveling speed due to how long you spend catching fish. It isn't required for cooking skill, and you can always build it up later if you decide you want it. So pass on it while leveling, but maybe build it up later.
All of these skills can be picked up whenever, and unlike professions aren't exclusive to one-another. So the only thing you waste by leveling them up is time.