There isn't a profit to applying legacy address. However In case the assistance you will be making use of don’t help SegWit/Bech32 withdrawals then you may want to use legacy address. Afterwards you are able to transfer BTC out of your legacy addresses to SegWit that starts with bc1. wallet/createaccountAPI https://robustdirectory.com/listings224118/a-simple-key-for-generate-vanity-ethereum-address-unveiled