3C products is not user friendly for senior people for cable charging
Charging your mobile device, you need to carry cable with you or put another cable in your car, office or home desk.
Daily task for power Cable plug & unplug with your portable device , extremely easy to damage the cable, not good design for environment friendly.
Didn't consider outdoor user, such as waterproof design for portable charging device portable device’s battery is easy to getting aging and it’s more difficult to charge it. It become electronic garage while battery is aging (no replacement battery design).
Customized Power adapter is everywhere(different voltage) for your own portable. Your adaptor is occupied your home plug space and cable easy to twist & tangled.