Treadmills were once used as punishment in prison. But it was banned as being dehumanising. That has been my experience of running on the things too.
Safety is important, and I will never be able to run in your shoes, so I won't criticise your choice. But do look at the crime statistics where you run and see if your concerns about running in the dark are well founded.
I still run outside on weekends or days off. I think the crime rate is very low but I just hate the dark and would be constantly worrying. Roll on next summer 😁
I started and finished the C25k all on a treadmill. I cover the time display with an ipad showing a running video (look for trail genius on youtube) and listen to EDM to spur me on. I graduated months ago and I'm still running three times a week but just never got round to running outside. However three weeks ago they started a new parkrun where I live so I had to give it a go. The following week I was on holiday in Jersey and so did another parkrun there too. My fourth parkrun will be back home this Saturday and I like the mix of a couple of runs on the treadmill with a 'special' run on Saturday.
If you are not comfortable in the dark then parkrun is ideal. You are with a group of like minded people and its a safe environment to run in. I was far from ready to let the world see me running but it's fine it and it's given me a new running experience mixing things up a bit!
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.