Seems an ez solution, but its not gamewise. As you allready read, some people have to play inventory shuffle because of the low strength at Cat. So i you going to be realistic as in 5E Rules and items are fused into characterform, then you are true to rules but one more step to itemshuffle. Even more so i say you are limiting yourself in what items that druid is carrying at all times in his inventory to not start itemshuffle beforehand, meaning before you change into Animalforms.
Thereby, a good compromise is giving animal form a free to go inventory without limiting to a n animalform but give animal the Druids STR Attribute and having more fun in the game. But Attacks should not be bound to STR of Humanoid form and be like a special attack, just for the sake of having fun in game and not restrict the flow of the game. So a cats attack is weaker then a bears form.
The inventory managment is allready a big task and slows down everything. So dont make it much worse.
A game needs to have more pieces of fun then beeing totally true to some rules. Then it will tread the golden path of the middle, whatever...
