~snip~Electrum is also very widely used by members on the forum, although some use other wallets to store Bitcoin because each member's choice depends relatively on which wallet they think is safer. Regarding security, it goes back to each user, only each individual can guarantee security depending on how much they care about the assets stored in the wallet.
Yes you are right about the security, all security depends on each user. Although the security of the wallet is enhanced if the user is careless then there is no point in such security. The use of hardware wallets will also be useless if you store phrases carelessly and can be known to others.