Look, that guilt is normal when you're first starting out, but you gotta kill it quick. You're not just selling them a product, you're selling them the whole service. You're the one who has to go get it, store it, haul it to the job, and make sure it's the right stuff. That's time and work.
Most customers would rather pay you a little more than go deal with it themselves. Once you understand you're charging for convenience and responsibility, not just the material, the guilt disappears. It's part of running a real business, not doing favors for people.
You’ll get over it once you realize what you’re actually selling.
