Having two small kids, I actually don't mind any security product coming with parental controls
Anyway most parental control software I've seem on home products were bad, incomplete or easy to bypass, although useful in reporting anything suspicious to the parents. In the end I just gave up on parental control software and just filter inappropriate content by setting DNS on their devices and restricting their accounts.
File and registry cleaners on the other hands are really unnecessary even if you think you need them and when badly coded they will do more harm than good.
Backup may be bloat or not depending if you already have some other backup solution. For many the backup solution in their security software may be the first time they even have contact with the concept of backup or with software able to perform it.
What may be bloat to some, because they prefer a pure security solution or already use a 3rd party to provide that function may be the first time a consumer even has contact with a password manager or backup solution. The reality of the average consumer is far from the reality of people who understand technology and how computer security works.
Personally I don't use any of the other functions home solutions usually implement, like backup, password managers, etc., because I already use other software for that or find it useless like file and registry cleaners but I don't think all extra functions should automatically be considered bloat if it is included in a home product, even more if it's an optional download, like in Avast or Kaspersky.
A password manager or back up solution do provide some extra safety to a home user, after all.
And before anyone jumps to conclusions I don't think every home product should include a password manager, parental control, etc. It's a security product first and should be judged by that alone. But I also don't think it's bloat if those functions are offered. And if they are, those should be judged as well... I can think of few things more dangerous than an unsafe password manager.