https… Should I? Or not?

So I was reading this article: https://www.branded3.com/blogs/seo-considerations-moving-http-https/

Which seems to strongly suggest switching my site to secure… seems kind of silly considering I don’t take anyone’s personal information or anything like that. But I digress..

a) Is this really a good idea?
b) If so, how do you handle thousands of redirects?

Does a plugin exist to handle all this?