Or, you know, people don't consider it "suffering", but "doing what's better". How about that?
If a parent demands that a kid eats his veggies instead of the "burgers and ice cream" the kind wants, it's not necessarily suffering.
Or if you still consider it suffering, it's not like all suffering is valid and should be respected.
It's very easy to make everyone happy, giving them whatever they want all the time, doesn't mean its best for them. Not even if they're adults. Not only what someone wants might be bad for them, but what someone wants might also be bad for others (like someone "wanting" to blast his favorite tunes at full volume at 2am). In those cases it's best that they "suffer" not getting what they want.