never hurts to try

Never hurts to try is an idiom used for something being worth the effort, even if it doesnt work out. What this saying means is that when you think something wont work out so you dont bother trying, it will for sure not work out. However if you try and fail, at least you will know that you tried and you never know what time the effort will be worth it. You mine as well try because it cant possibly hurt you to put forth the effort.