It is a good idea to have some holdings of bitcoin, but Its not just about the storing of bitcoin, rather, how safe are the bitcoins(satoshi) that you are holding. There are a whole lot of new wallets out there in the internet that says they are the best, but at this point the security system and how long they have been in utilization. Though it is true that the more popular a wallet is, the more threats of theft by hackers are directed there, and that is why the developers and ICT section of these wallets keep working.
Like the hardware wallet (ledger nano) is a good storage wallet, but the safe keeping of your wallets mnemonics, private keys etc are on the control of the wallet owner.