Let's look at this from the aspect of a normal bank account, after you create a bank account, you are given a unique account number, that only links to your bank account. And until your account becomes dominant this number remains yours and yours only.
That same way, wallet addresses are created from secured hash algorithms, which produces a private key just like your bank pin for transactions. And also you are given unique address (just like your bank account no) for a wallet and can only be used for one wallet.
What are the chances of anyone accidentally creating the same Bitcoin address? Is it remotely possible or there is some kind of checks before network, software, God or something would do a check first before approving the Bitcoin address. Again, I'm just thinking out loud. Hmmm...🤔
I really don't think it's possible for two persons to have the same wallet or Bitcoin address.