What is the reason that the least significant trit is at the very left in the IOTA ternary implementation when all other numbering systems have it at the very right?

For T = -1:
(dec)8 is T01 instead of 10T

Same for trytes:
(ASCII) 1 is VA instead of AV
(ASCII) 2 is WA instead of AW

Is there a reason for this or was it just random choice?