That's fine, but that's not the point the OP was making and doesn't do anything about the last mile problem on the other end.

I'm posing having two bikes (one a cheapo one) as a solution to not being able to take your bike on the bus/train - solving the the first AND last mile problem.

A cheapo bike is not likely to be something that you want to use (and rely on) for your daily commute, though.

Fair point. Though if the "last mile" commute from the bus stop/train station isn't too far, and in a relatively urban area, you can get an Uber trip in the worst case scenario of the bike breaking and taking the bike to a repair shop the next day.

It will likely still be more cost effective than driving all the time because you are unwilling/unable to take a bike on the bus/train.