I started running in April, during (the first) lockdown. I used to love going for long walks, but wanted to up my fitness and running seemed like a good option. One thing that bothered me about walking is that I'd often end up checking my phone, replying to messages, or even idly checking Twitter while I walked; walking in itself didn't necessarily require all of my attention. After a few months of running a couple of times a week, in the last week of September I decided to try running 5km every day for as long as I could.
I've been averaging pretty much exactly 5k per day, though with a few days off and a few 10ks to compensate. To my surprise, I actually love doing it. One big reason is that I have to do run and only run; there's no phone-checking, nor even the temptation to do that. It's just me, some music or a podcast, and the constant task of brushing my sweaty hair out of my eyes.