I think is servings of Bitcoin in different wallet will make you to lose some of them if your wallet is not strong enough and again that is someone wallet that what, keeping cryptocurrency and it is day long I'm nobody only hack your wallet account so splitting your Bitcoin in different wallet is good but the problem is that the disadvantage they cannot remember some of day secret code of the wallet
Maybe the reason why he did that for the addifional safety of his asset. I hope that the wallet is used is legitimate and he did not invested to mlm or any hyip because it might be the reason why he has so many wallets right now. Or maybe because he don't want to make KYC? There's a certain amount in every wallet for us not to do kyc.
There's no other reason on why some people do consider out on storing their coins in different wallets but non other but in terms of security which is something very common but of course storing its key for specific
wallets is also one of your main concern on where you do store it out because if you dont put up seriously and losing it then say goodbye into your coins.We can make wallets as much as we want but for me
having only one would be enough and you should separate wallet which is for active trading or transaction and one for long term prospect.
There are some reasons why some people do that. Based from my experience, there are some unseen circumstances that need this kind of decision.
Like for example, suddenly your bitcoincore wallet has errors upon synchronizing and you badly need the funds.
Remember, if you happen not to sync the core wallet for long time, it will take time to sync your wallet.
Whereas, if you are using electrum, syncing is quite fast. So you can easily access your funds.
This is why for me, it is understandable if you would want to split some of your coins in different wallets.
You will never know what potential problems you may encounter in one wallet, at least you have a fall back in case the need arises.