Never said anything about "leaving the keys at home". Just wouldn't feel the need to have them in my pocket at all times. Could give my son access without having an extra set made for him. I understand nothing is fool-proof. I believe it gives a warning when the batteries are getting low...
19xx Wife (named Melissa)
2014 Akita (named Mizuki)
2015 F250XLT 6.2l V8, 4x4, Supercrew, 3.73 Rear
10K WD Equal-i-zer Hitch
2015 Coachmen Catalina 273BH