We are building a new home and the drain plumbing for a toilet upstairs has a 90 degree elbow directly out of the clamp for the toilet, goes about 6 inches, another 90 degree elbow down into the trap. They could have went straight down into the trap, it appears, but put the extra piping in. I don't know much about plumbing, but this seems as if it could cause problems down the road as far as good drainage. Am I being paranoid? Thank you for your help and response in advance! Aric

A toilet does not require a trap in the line because it has a trap inside of it.
A long sweep and medium sweep or even 2 medium sweeps in 3 or 4" should be OK. No short 90's. No trap.