Modern Bluetooth is nowhere close to a half-second audio delay. I was concerned with this in the past, but with modern headphones and codecs it is not an issue anymore, there is virtually no delay.

When they removed the CD-ROM Drive, a lot of people complained how they could possible do that, because apparently so many people used CDs a lot because in the real world internet connections often are not that fast etc. You will always get these kind of complaints but the majority will accept eventually and in a few years nobody cares anymore. I think it's better that way because modern bluetooth is really good (despite charging) and enables innovation in other areas.