I am for security, not privacy.
Just afraid one of the address being hacked, I understand it also impossible to be hacked, but still possible.
Also need few hot wallets to be use by me and my family.
(Also I can give different cold wallet to my family and let them manage them)
If all those addresses are in the same wallet, then chances are you're not increasing the security... as they will all be able to be generated from the same seed, so if the wallet/seed gets hacked, they'll all be exposed.
You'd need to create several new wallets, each with their own seeds and then split your coins across the different wallets.
In any case, you can use the "pay to many" option in Electrum and do one transaction that sends your coins from Address1 to Addresses 2, 3 and 4... and save a little on fees. Especially because fees are just insane right now.