the only problem that may occur is if the wallet is not correct another challenge is if the transaction is been encountered with down network but this is in rare cases.
OP, it's probably that English is not your native or the second language either or you don't really know what you're talking about, and these lead to cases like the statement above which are just going to confuse people and more importantly, are completely wrong.
The bitcoin network was never down!
Of course the second thing about this happening in rare cases is also wrong but the most important thing is that the network is never down, there might be congestion issues, and your tx will take longer to get confirmed but at no point, has there been a situation when you sent a tx and there was no node to receive it and no miner to mine a block.
They must not be compared because they are structurally different. If you send money to an incorrect account by mistake - you may get it back in the centralized banking system, but in bitcoin, there's no way! Every system has its pros and cons, let's respect that and choose what's convenient for you!
But some will never stop comparing them, and what's more frustrating doing so while taking only the good parts of one and comparing it to the negative of the other and declaring a straight winner, for a merchant this is perfect, every sale is final, for a customer, not so much!
If we could have built a perfect system we would all be using it by now, but there isn't one, and probably will never be!