Okay first of all Drag is not a fetish.  It can be but it's not inherently  meant to be.  It's performance art.  Its  a mature form of  performance art.  Its  literally grown ups playing dress up .  But yes it's highly sexualised as with anything catered to an adult audience so i think it's downright disgusting to bring your 5 year old child to a drag convention where literally companies  have booths selling sex toys.  Its not progressive to let your kids perform seductively infront of an audience, its creepy.