Wifi and Bluetooth rose to consumer attention around the same time, and bluetooth appealed to people who weren't necessarily 'techy' since it was adopted heavil

Wifi and Bluetooth rose to consumer attention around the same time, and bluetooth appealed to people who weren't necessarily 'techy' since it was adopted heavily for car hands-free kits. Businesspeople outfitted company cars with it soon after it was released for legal reasons. I wouldn't say adoption was lower than wifi, in fact bluetooth was probably more rapidly adopted because, since it's linking simpler devices, it's cheaper (wifi needs the whole TCP/IP stack underneath it), but you're probably right in that it has seen less investment in error robustness than wifi - momentary loss of voice through your handsfree is usually tolerable, wifi dropping a large number of packets is not.