I'm continually amused at the huge bags that many people carry for their badminton sessions. Seem like a herd mentality. For the 2 foreign players they just chuck their racquets into their backpack (same as me). Enough to hold my shoes & a t-shirt as well. Why would they want excess baggage?
Like McMansions the bags in recent years have balloon to same capacity as backpacking backpacks. Playing badminton or going backpacking overseas?
Even if the big bag is free when purchasing racquets i will think twice about it since it adds more to the clutter -occupy so much space...
Less is more.