It's a hassle to have many accounts but I also think it's safer than having one master account that logs into many accounts.
One account to log into many things sound like FB to me and I hate FB.
But eh if the master account is provided by a company I feel safe with and can trust and also provides fail-safes such as numbers to call if I forget my password and being able to reset passwords with another email address.
I'd still make multiple accounts anyway because of character limitations per account as well as storage issues. Better to split up my assets among multiple accounts just in case hackers get at it as well.