Those aren't things you always need, though. If you commute to an office, sure, you probably take a bag with those things with you during that. But do you take

Those aren't things you always need, though. If you commute to an office, sure, you probably take a bag with those things with you during that. But do you take that bag with you when you go out with friends? If you go to walk your dog in the park? Maybe you do, but I think most people don't. Speaking for myself, if I'm going out without any special goal, I'll just have my phone, keys, and wallet.