Personally pods should be banned, especially ones with built in batteries and plastics, These are bad on the enviroment and the more pod users the more 10 ml plastic bottles add to plastic waste.
Then there is my huge dislike, pod users create more profits for companies, why customers need variations on one sytem,is costly, ie different wattage, different battery size, then bump the pods are not always backwards compatible.
So if i had to create a pod system, It would use a 21700 battery but there would be adapters to use 18*** batteries. Max 50w with tc. Single coil RTA style pod made from metal and glass, no plastics. MTL RDL, DL compatible. Pods should have a industry wide compatibility as well as coils. No magnets, the connection isn't always strong and leads to breakage of atomizer/pod.
All the above leads to one thing a mod and rta set up which is how i mostly vape any way lol.