

Linux keeps getting more development because it is the cheapest way to develop a platform. It is the reason why almost all servers are Linux and it was used as the basis for Android.
That said, Steam is a wildly profitable company that is self aware enough to not kill its golden goose.
But that may not be as viable today.
There are already several transit systems that have converted to cashless systems. There is also a push to some stores to cashless as well.
Cash may be a superior way for kids to handle money, but I can see some areas where having cash isn’t viable.
If I was a parent, I would want the wallet to act as a debit only system. However, I could see the utility in giving my kid a debit like system with $10 on it.