If you drive to the same place 5 times with satnav and don't learn the route, I'd say that's on you mate.

With satnav, you can multitask more, just blindly follow the directions and get there while you're having a debate with the wife over where to go for dinner tomorrow night and who's going to watch the kids while the plumber fixes the bathroom sink...

Without satnav, you actually had to pay attention to the landmarks, street signs, etc. to get to your destination with your A-Z, your brain was forced to be engaged with navigation or you'd never get there.

There's no reason you can't still keep your brain engaged with navigation whilst driving to a new / unfamiliar place, other than your choice to not do it. Your submission to social pressure to engage in other things. Your acceptance of ridiculously complex backroads routes that you'd never attempt with an A-Z.

Here Up Over in Yankland, I use the GPS phone map navigation apps for several reasons: they give traffic updates near realtime and can route me around backups that develop after I set out, while I can generally get close to a new place, the final turns can be tricky especially downtown with the one-ways so I'll let the damn thing prattle on through the 98% of the route that I could do in my sleep just to get that final endpoint guidance because it's too fiddly to engage it while already en-route - sometimes I'll turn the volume far down until we get close, but that defeats the traffic jam detection. Sometimes the app will alert for police activity ahead, rarely - but sometimes - it's an actual early warning for a speed trap. And, those "avoid highways" back country routes, the ones with 47 turns where you could get there using the interstate with 5 turns... yeah, those are fun - and I do usually have the route memorized after about 5 runs through the same route, but they're also highly subject to reroute to avoid traffic congestion so you might drive it 10 times and never use the same routing even 3 times.