I would say yes. I love my pockets, but the damn things get filled so fast with phones, wallets, box-cutters, markers, pens, papers, etc. Plus it's a pain when I have whatever is in the pocket with the phone pressing buttons on me randomly.
I'd say backpacks are a fine substitute but they are so huge that you might lose the small valuables in it and it's probably easier to steal from when your holding still than a purse would be since you can hold a purse to the side.
AND sneaking candy and stuff into movies is much easier. I hated it when they said I couldn't bring a backpack in anymore. Fuck prices on theater candy, I'm bringing my own, damn it.