There are several ways to share account passwords with others. The most secure way is to add them as a (family/team) member or guests to specific vaults. To do that each party requires a 1Password account. The second (not so secure) option is to use the standard sharing sheet of your operating system. While that approach seems convenient, you should know that you’ll be sending credentials in plain text. I recommend not doing that (and so does 1Password) unless you have no other choice and you’re using a secure way of transmitting the plain-text credentials (e.g., Telegram or iMessage).