Stepfather - tux or suit?

You should ask your dad how he feels and what he thinks, take it from there. You never know until you ask!

Talk to Dad.

I don't see anything wrong with them both being in tuxes if that is your vision. If your dad is walking you down the aisle and will be doing the father daughter dance then nothing will be able to take away from that. He will definitely be recognized more so than your stepdad.

I don't think it's something that YOU need to worry about honestly.

First, I absolutely LOVE that your mom doesn't want it to take away from your dad. That's amazing to me!

Second, I feel that if he's been there for half your life and has helped raise you, he deserves to be recognized as a father figure. I feel that putting him in a suit is saying "thanks but not thanks enough" or something like that.

Your dad is your dad and will be doing all the father stuff (walking down the aisle, dance, etc) but your step-dad is your dad too.

What would he prefer?

Ask your dad

I'm having my father and step-father (who I've known all of 5 months) walk we down the aisle (long story). Anyway, they're both wearing tuxes. I say who cares what he wears.

All the father's are wearing tuxes. His father, my father and my stepfather. I don't think it's taking away from anyone.

If the other men are wearing tuxes, then step-dad should also wear a tux so that he matches the formality in family pictures. There's no way him wearing a tux would "take away from" your dad, that's silly.

If the others are wearing tuxes the I feel your step-father should too. Otherwise, it may seem like while he has be there for 15 years he's an outsider. You father will still have that special honor of being your father.

If he's been in your life for 15 years I don't see why there would be any question as to him not wearing a tux unless you have a bad relationship with him.