Looks simply beautiful. Excellent design. One thing that grabs my eyes always are side bars. For some reason i feel left side bar for right handed person it no

Looks simply beautiful. Excellent design. One thing that grabs my eyes always are side bars. For some reason i feel left side bar for right handed person it not convenient and vice versa. But, i see all apps designed with left side bars. Wondering why left side only while many users to my experience are right handed ?