AS per my understanding, we can go offline and generate keys on Bitaddress.org. am i correct and is it Good?
Only what you need is to download the source code (ZIP) from
https://github.com/pointbiz/bitaddress.org, use it on an offline browser like Firefox on an airgapped device. After you download the source code, restart your computer, open the ZIP file and use its html on the offline browser.
Also, it is not going to be easy if you're going to have a lot of transactions, you could just use web wallets or something like coinbase when you just want to have fun and wanted to buy some cryptocurrency, I guess these paper wallets is just for people that are very careful on their investment the one that is going to buy put it in the paper wallet and forget about it.
This is the purpose of a hardware wallet, in a way you your private key can still remain almost offline ans be able to make frequent transactions.
Why Coinbase, which is a custodial wallet? I do not think any Coinbase app can even handle batch (paying to many) transactions.
Why web wallet when there are better ones like Electrum and Bluewallet.