I like the idea of my kids being able to spend their wollo via debit style card. They can easily pay for things and feel more independent.
not only that the wollo tab has inbuilt game inside it with 200 wollo in it. the kid has to play and earn those and the level goes hard as the kid progresses in the game. which will help him/her learn to save and earn while playing it. and the parents can have a watch over their kids growth through parental control on their tabs.