When I was 20, writing code was interesting, by the time I was 28 it became "solving the problem" and then moved on to "I only really enjoy a good disaster to clean up".
All of my time has been spent solving other peoples problems, so I was never invested in the domain that much.
And despite the amount of people telling me the code is probably awful, the tools work great and I'm happily using them without worrying about the code anymore than I worry about the assembly generated by a compiler.