They work very well. It’s a cliché that they don’t work. They don’t work if you’re a stupid kid of 18 having your first encounter with someone. (I guess, in modern day America, I should say ‘if you’re a stupid kid of 12 or 13...”)
“It’s a cliché that they don’t work”
Do you have any evidence that supports your position that they ‘work well’?
This evidence indicates the opposite that condoms actually don’t work well.
Where’s your evidence?
Did you know that when condom manufacturers say they are 98% effective, they expect you continually check for leakage? Condoms leak during 6.7% of all sexual encounters using a condom. That’s not 6.7% of users have experienced a leak; that’s 6.7% of condoms leak during each sexual encounter! (42% have reported condoms outright tearing during sex!)
Did you know that condom manufacturers expect you to manually hold onto the condom while having sex? 13 to 19% of condom users report slippage.
So, no, it’s not only fumbling teens who mess up with condoms... it’s most users.