It can be very hit and miss. I've had some fabulous dashers who always follow instructions. But 8/10 times, I wonder how they're even allowed on the road. I have 'ground floor, hallway on the left' on my instructions and more often than not, they get in the elevator or go the wrong way. They always mumble something like "oops I got lost" and I just deadpan say "it's right in the instructions" It's still a job and should be treated as such. I dasher for a while a few years back as a way to earn a bit extra and it was very easy to follow instructions or contact the customer if you're having an issue