What's stopping you from explaining the reasons sincerely? E.g. "I know how to make a website, but it can still be time-consuming, and that's work that I'm usua

What's stopping you from explaining the reasons sincerely? E.g. "I know how to make a website, but it can still be time-consuming, and that's work that I'm usually paid for. You are asking for a bigger favor than you realize."