Board Thread:Questions and Answers/@comment-25139993-20180828225733/@comment-32389776-20180831010350

While i do not know a in-universe explanation, it's probably because merch .The characters have to be easily recognised by kids  so that they can make money .If the characters would be recognisable from under the suits then  it would form a plot hole because in-universe the differences  made for recognisability  would give the characters away .They do dress in trench coats sometimes to   blend in with humans but their face remains visible and they only disguise themselves like that rarely