The world may not of ended but to of people have been hurt by malware ruining their computer, cryptolocking all of their company's files for ransom, stealing all of your login credentials, stealing cryptocurrency, taking secret photos with your webcam, screen recording what you are doing on your computer, etc.
The "personal computer" has a terrible track record.
For many decades, people have been mistakenly putting diesel fuel into their gasoline cars, yet we never outlawed diesel vehicles. You can only do so much to protect people without destroying their rights to their property.
It is much rarer since it needs 0 day to do these at the same level as possible on a pc. The play store scanning apps for malware is an important safety mechanism against this. Further more imposter apps like YouTube but with no ads that are Trojans that steal people's accounts.
Or the accessibility permission, or to some degree the access all files ones; but it's also enough for the app to pilfer the data you trust it with.
The Play Store's scanning is very far from perfect, and the amount of crap that's on it, combined with the trust that people have towards it, and apps' unfettered access to internet, makes malicious software easily more common than on PCs.
Even without considering as malicious the enormous data collection that almost everything on the Play Store does, encouraged by Google
The "personal computer" has a terrible track record.