It’s also significantly cheaper than owning a vehicle, (though obviously, a vehicle will take you door-to-door anywhere, doesn’t expose you to inclement weather, and can haul cargo, so it’s not an exact comparison).

In the US, a person averages about 42 miles of travel a day:

And the average aggregate cost per mile in the US of a (new) vehicle is 54.56¢/mile for a small sedan to 86.21¢/mile for a large pickup.

Figure 30 days to a month, and that’s ~$687/month for the small sedan to $1086/month for the large pickup.

At current exchange rates, 58 EUR is ~$64.50; less than a tenth as much, if you can get around just via transit covered by said ticket.