I believe weight training is excellent exercise.
It is especially good if you want to develope the strength and size of your muscles
Yes but also to maintain muscle mass when you age, however I find it kind of boring.
It is a bit boring weight training uses a variety of certain muscle groups together to help build the muscle up
Yes, and I believe it works better if you take protein supplements.
Many professional and non professional sports use weight training for their players, like Football, baseball, and even track and field
Yes, I am a recreational runner and weight training is recommended to avoid injury and improve performance, but it is difficult for me to do it anyway.
You could try the weighted clothing available, you just wear it, and you dont have to do an actual work out
Sounds easy but also like a gimmick I doubt it would be the same or would have any effect at all,  I remember those reebock that were suppose to exercise you by being unbalanced or something, I believe they were proven not to work.
use of weighted clothing is a form of resistance training, generally a kind of weight training. In addition to the greater effect of gravity on the person, it also adds resistance during ballistic movements, due to more force needed to overcome the inertia of heavier masses, as well as a greater momentum that needs deceleration at the end of the movement to avoid injury. The method may increase muscle mass or lose weight; however, there have been concerns about the safety of some uses of weights, such as wrist and ankle
Weight training
Weight training is a common type of strength training for developing the strength and size of skeletal muscles. It utilizes the force of gravity in the form of weighted bars, dumbbells or weight stacks in order to oppose the force generated by muscle through concentric or eccentric contraction. Weight training uses a variety of specialized to target specific muscle groups and types of movement.
Sports where strength training is central are bodybuilding, weightlifting, powerlifting, strongman, highland games, hammer throw, shot put, discus throw, and