I've worked plenty of those kinds of jobs. I worked retail, farm labour pumped gas etc. When I worked them I showed up on time.

It depends what you sign up for.

There are 'availability' jobs and 'ability' jobs.

The more you try to find a job tailored to your ability, the less people tend to demand your availability.

They will try to demand it anyway, but if you're good you can get them to overlook it.

For now I'm lucky enough that I can live this way and still make customers happy.