Until their school ask them to produce a document in MS Office, or they want to play a game that is not available on Linux. I installed Elementary OS on my nie

Until their school ask them to produce a document in MS Office, or they want to play a game that is not available on Linux. I installed Elementary OS on my niece's computer because she lost her Windows licence. 2-3 weeks after that, she told me her computer was "broken". The reason was that she tried to run some apps (win32) but of course it didn't worked.