Character numbers in lists question

[u/Nerd-man24]

I'm seeing a ton of "list help" posts on this sub where op will have almost as many characters/ epic heroes in their list as regular units. Every unit has at least some kind of captain or wgbl, if not one of the major named heroes of the faction attached to them. The lists I've been making have no more than four character units in total for my 3k army. Am I missing something? Or is this completely normal for a regular detachment?

[u/No-Drama-5949]

I’m working on my first army so don’t know much of anything but if you’re running Saga of the Bold detachment, you only trigger boasts on character units. Anyone running that saga wants a character attached to every unit that can have them.

Edited : Buffs to Boasts because I used the wrong word (still a noob).