～ことにはならない: "(Just because) ... doesn't mean that X"

Introduction

Just because I'm writing this nice little intro for you, doesn't mean this lesson is going to be all fun and games. On the contrary, this is an all-business, take-no-prisoners type of lesson. I'm going to be doing all sorts of admonishing, pestering, and bothering. So get ready!

〜ことにはならない: It doesn't become that thing, and it doesn't mean it, either!

構成こうせい

• 

  Casual form verb/い-adjective(という)ことにはならない

• 

  Noun/な-adjectiveということにはならない

  Example:
  → 小学生しょうがくせいでもできるからといって、絶対ぜったい安全あんぜんということにはならない。
  "Just because even elementary school students can do it, doesn't mean that it is guaranteed to be safe.”