Why can't red alert sound on phone be disabled?

Help me understand this feature because I'm hesitant to even use it.

I'd like to try out breathing monitoring but I hear there are false alarms. Right now, as parents, we sometimes are frustrated during regression stages or just general day to day variance and some nights are tougher than others. If for instance I just spent an hour rocking my baby to sleep, put her down, the last thing I want