This might be a case where perfect is the enemy of good.

People overestimate how much and how hard they have to work to make a positive impact on their fitness. You don't need to join Crossfit, run ten miles a day, or lift for forty-five minutes, five days a week.

For someone who is sedentary, jogging a couple of miles with a stroller is a huge improvement. So is twenty minutes of yoga.

Consistency is more important than going all-out, all the time.

Personally I've been pretty hardcore about various kinds of fitness (including the synecdoche of the day, CrossFit) so it's been an adjustment to be the dumpy dad jogging behind a stroller.

I will say that I really wish I could lift weights or at least do pull-ups right now because I'm getting all kinds of random aches I don't get when my upper body's in shape.

Caveat: jogging strollers aren't recommended for babies before at least six months, because they don't really have any neck muscles to handle changes in direction or stopping. Wait until they can hold their own head up and look around. BUT you can use that time to try running with an empty stroller at least once, it feels pretty different and also you might notice some unexpected obstacles along your normal route!

Even _walking_ a couple miles with a stroller is significant!

I mean, the average person doesn't really need much equipment if the goal is to lose weight (in contrast with the niche hobbyist market of building muscle). There's a ton of bodyweight exercises[1] you can use that require no gym or even weights.

[1]: https://en.wikipedia.org/wiki/Bodyweight_exercise

A decent body weight program is going to require a pull-up bar and if you rent that's a tough ask

Maybe I'm just bad at physical fitness but I've never been able to do a pull-up. Seems like the kind of thing that requires both upper body strength and a lean body, which is kind of where I want to finish, not where I get to start from.