I keep seeing this argument, from presumably 20-40something single men.
I ride outside a lot and indoors too.
1. trainers don't work if you have 7+ bikes in a household with differing drivetrains, even the ones that attach at the wheel.
2. watching people ride and sitting on a trainer is kind of boring
3. peloton content is pretty engaging (maybe not for you)
4. the subscription cost is not an impact to finances