Well you need to enjoy walking a dog 😂
But, dogs don’t really understand time, so unless you have a very strict schedule (because they will get used to that) the walking is usually movable. So you fit it round other things.
When I had children of an age that they needed getting to school, I’d walk the dog up and come back a way that meant he got a decent length walk. Sometimes the time I spend with friends is us walking our dogs together. It’s very rare that me and my DP are the same level of busy on the same day, so if I’d be struggling to fit one in then he does it.
Also, you pick a breed that suits you, when the D.C. were small and I did have less time and energy then we had a dog that was a less active type and with decent walks all he needed outside of that was company and stroking, as they got older I’ve picked more active breeds/dogs because they’re basically my main hobby so I want to do more with them outside of walks. But if I worked normal daytime hours and had other stuff going on, I could have got another lower maintenance dog... and the walking is good for you anyway.
So yeah, if you’re by yourself and out a lot or there’s two adults but you’ve both got very full on lives then they’re probably not the pet for you, but I work, socialise, read, spend time on here 😂 I don’t watch a lot of tv right enough, I do the bare minimum housework... but I don’t do more when we’re between dogs so I can’t blame the dog for that one. I also wouldn’t do things like join a gym, because well, I’m already walking.