Well, I guess "necessity" isn't really the right word, no?
Um... How about... I don't know...
Let's rephrase it altogether, then~
Do you believe that it is really helping a person if they use it? I entirely get what you're trying to accomplish with it, and, trust me, it would've been great to have for some things earlier in life. But would I really have learned anything getting the answer as simply as is available?
Sorry if there are typos, iPad's keyboard does that to me~