It is not realistic to expect every game developer to invest a lot of money into security. It's like asking every apartment building to run its own fire department.
The responsibility of securing a platform should not fall on application developers anyway.
And most other device types have a specific purpose, with the exception of mobile phones which were built from the ground up with device control in mind, mobile devices only really support one operating system barring edge case exceptions.
Yes it is, and liability across the industry is already late.
By the way, in some countries apartment buildings need several licenses, including one from fire department, before been allowed to have people living on them.
