should you put the walking cycle animatoin into a seperate symbol?

so i thought i could like put the walking cycle animation into a symbol, so that the person is just walking on one point in the symbol, and then in the scene i just drag it and use a classic tween to move it. do professional animators also do it this way? i would make an equasion for the walk animation, so it doesnt look slidey and measure the distance across the frame count to make it fit perfectly. is this a good idea or should i rather make it individually?