What’s better for a new dnd player, component pouch or arcane focus?


I’m just starting out in dnd and creating my first character (a half-elf wizard) and I’m at the equipment section. I’ve looked up the differences between the component pouch and arcane focus and can’t decide! Should I chose the component pouch because it’s more expensive and therefore harder to get later? Should I get an arcane focus and have it double as a quarter staff? Should I just buy a cheap sack thingy instead of the component pouch? Is one easier to use than the other? I don’t know!