Agree. The game originally started with a kick-off (given the rugby origins) before moving to a ball-up and then the bounce. I guess the 'tradition' argument depends on when you say football really 'started' but that becomes a grey area if you argue for later than the original 10 rules of the 1850's. Based on the evolution, like an earlier post, the intention seems to have been for clarity of start (ie by giving possession (kick-off) or having a neutral start (ball-up)) rather than the randomness of the bounce (the tradition of which may perhaps actually be a furphy) - on that basis reverting to ball-up is what it should go back to.Well no that's not the case, as explained by historian Col Hutchison in the latest video posted on the AFL website.
Having said all that, I would love to see the bouncing technique in that video come back in!