So i was thinking if i send a bitcoin transaction without the miner fee or a very low fee what will happen ? would i get the coins back eventually ? or they will just stuck there forever ! and if that happened how to do that double spend ?
Can not, this can not happen, miner fee is a condition needed to make a bitcoin transaction. It's the original platform in blockchain technology, you can not change it.
Yeah I think as this fee is mandatory to all of us just to send bitcoin safely without double spending. Better pay high than your transaction got stuck you're like waiting for how many days if it will send or return it to you. Somehow risky if you trust your coin to some third parties.