Having worked minimum wage (or slightly better), I can offer some insights).
It largely depends on your circumstances, but it's usually a mixed bag.
- Public transportation not always reliable and sometimes doesn't drop you near enough to work.
- Family or friends drop you off.
- For the elderly or disabled, there is something called "Para transit", which is publicly funded transportation for people with mobility issues.
- Bicycling (not good in the rain)
- Picking a job that is local, or close enough to walk to. This is common in both urban and semi rural areas. (In the American Midwest it is more practical as the weather is drier, and rain is less of a problem
- In some cases, the employer may provide transport.
Most often, you are going to have to use multiple methods and have a few backups.
When I had to do it, I had to walk 1.6 miles to the bus stop, then take the bus, then walk another half mile to get to work, in one case.
In another, I had to take a bike to the bus stop. This presented another problem because the bus only had a rack that would hold two bicycles. If that was full, you had to wait for the next bus, which meant you always had to plan as if you were going to miss the first bus.
You can also bum the occasional ride. You want good relations with your coworkers if you do this, because you cannot always rely on family and/or friends.
If it's to far to walk, and no public transportation, a bicycle will do, but again, you have to watch out for flat tires and weather. You will need a backup plan in case of weather/flats. Get puncture resistant tires and always have a patch kit if you take this plan.
Walking as an option will work if you are within two miles, otherwise it's just too far to be practical in most cases unless you are in very good shape. But do this for a few weeks and you will be regardless.
Most likely, you are going to be using several of these options, possibly even at once. (Bike to a stop, lock up your bike, take the transit, walk the rest of the way) et cet.
Lots of planning is required.