No, I hold the same fear about any video game controller and a person that doesn't own it. :3
In running smaller gaming events with consoles setup arcade style, I've seen people of all ages get pretty frantic with the controllers. Friend of mine at an event once found the drumstick holders snapped off a pair of Guitar Hero drums at the end of the day. I've seen triggers on light guns overused. God, racing wheels, I worry the MOST about racing wheels. You can stomp on them and whip that wheel around.
When you paid for it, it's your baby or you at least understand it's YOURS to destroy. Other people seem to often show less respect for other peoples toys. 
Too true. Consoles are different beasts entirely though. I hold the same reservations with my own consoles and I really dislike
anyone using my consoles. There's all but three other people I trust to use my consoles and two of them are no longer around.
The Wii controllers get the most abuse from
her friends, so much so that my fiance actually went out and bought a set to replace them already. The wire between nunchuck and controller gets stressed. People (kids and adults) spin the wii controller by the strap (that really pisses me off) or let it hang by the strap. The controller has been used as a baseball bat (literally). Or they'll pick at the silicon jacket (something arcade owners are intimately familiar with, I'm sure). When I got another current gen console, I reconfigured my entertainment center to hide all the current gen consoles from prying eyes.
"Hey, where's your PS3?"
"What PS3? You mean my PS2?"
"Didn't you have a PS3 right here?"
"You must be thinking of someone else. You wanna play the PS2?"
"Nah...."

I agree with you 100% about that last statement. But note the OP is talking about his daughter, you can smack your kid around if they break your equipment. You can't really do that with your so-called friends. If any of my friends show up that I feel are too rough with my cabs, I just tell them my cabs are out of commission and need repairs. A couple of cabs have "kill" switches or I just pull the fuses so even if they try to plug them in, they remain dead.
Irregardless, cabs are a bit tougher than your average console.