They should mandate for 3.5mm jack and memory card slot as well. Or at least bring extra 18% e-waste Tax to phones without them. Yeah, not going to happen. Sensible decision may be giving Tax concession (12% instead of regular 18% GST) for phones with both 3.5mm jack and microSD slot.
BTW, FM Radio with USB Type-C port will be worthless. I had bad experience with S10 Lite. FM Radio worked ONLY with the bundled Type C earphones. Good luck with NO earphones / charger in box trend.