You will find that a majority of kicks in Clasiscal Karate and Okinawan Kata etc were original taught to delivered no higher than Gedan (Lower) level, Chudan (Middle) was a "rare" technique in Kata/Karate.

I believe, please correct me if I am wrong, that it wasn't until the popularity of Tae Kwon Do did Japanese Karate start to add Chudan (Middle) and Jodan (High/head) Kicks to its arsenal.

I also believe that Tobo Geri Waza (Jumping Kicks) again was a quite recent development within Traditional/Modern Karate
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A man is but the product of his thoughts what he thinks, he becomes.

Ken