Odds are that Greytop is a single person and not a parent of an infant or toddler. I've flown several times with my son when he was between 1 year and 2 years old. Fortunately he was well behaved and didn't make a fuss. We flew FC each time. As far as I'm concerned he has equal right to fly in FC as an adult. Trust me when I say that we parents are embarrassed and frustrated when our kids bother other passengers as we know what how they feel. I used to get annoyed at crying babies while flying until my son was born. Now it's mere empathy for those parents having to deal with a fussy baby. An FA showed us a miracle pacifier, Cheerios! Amazing how some Cheerios will calm a young child.
I'd rather have a crying baby on board than a drunk adult insulting FAs or freaking out and trying to crash a plane.