This hits home. I have 2 failed companies to my name. First one flopped, second one I learned from my obvious failures and it got started, then folded when a client refused to pay and I didnt have the resources to fight it in court(single person business, no resources to fall back on as it was just starting out). So back to working the carnival. The second attempt took everything I had, savings, working 12hr days minimum, and every bit of my technical skills. While the first I was hoping for side cash and didn’t invest as much time and effort and got practically nothing. I am not going to sacrifice like I did for the second one ever again, too much work to have it fail because of someone else, the place that didn’t pay me ended up folding within a year so likely I just took on a bad customer, but if that’s all it takes for a fledging business to become untenable for a single hardworking person to accomplish, then it’s not even worth trying because there are so many failures out there that you have to weed out if they will be likely to pay or not.