what does that have to do with anything? just because you don't headline, you can't be big? they toured with paramore and sleeping with sirens, doesn't get much bigger than that
Tours Conditions have been on since 2010.
Sleeping With Sirens/Conditions/Dangerkids/Lions Lions
There For Tomorrow/Life on Repeat/Conditions/Oceana
Life on Repeat/Conditions/Sent by Ravens/Divided by Friday
There For Tomorrow/VersaEmerge/Conditions/Amely
Haste the Day/Oh, Sleeper/Our Last Night/Conditions
VersaEmerge/Anarbor/The Dangerous Summer/Conditions
Conditions/Lower Definition/Assemble the Skyline/End the Century/The Kinzie Affair
And, yes, usually bands that are big enough to headline their own tours choose to do so.