in the US at least, yes. I don't know how it works in other countries, but most servers are paid minimum wage, maybe a little more if they've been at it for a good long while. would you like to be trying to make a living working fulltime for $7.25 an hour, probably in need of 2 jobs, and some may even have children they're trying to raise while doing it. I wouldn't tip someone at my local gas station, unless maybe it was one where they have someone who fills up your tank for you, then maybe a dollar or 2, but if it's at a restaurant or a delivery or anything else I feel I should tip. that is, as long as they deserve it, and were doing a good job.