The problem with questions like this is that every person who answers feels, on some level, defensive of their own position.
The truth is, there are (of course) pros and cons to both possibilities. Personally, I am glad I have had children, but I was very much motivated by biological urge and I have 4. If I had waited until I was older and wiser I suspect I would have had fewer of them, though of course I wouldn't be without any of them now.
I, personally, find it quite sad that the most consistent 'pro' of being child free is 'more money,' but then I find our society's emphasis on money and its importance sad on a broader scale, it's not a reflection of child free people.
Parenting is hard, hard work. You have to really want to do it, all of it, including the poo, the sleepless nights, the screaming teenagers who are exercising their freedom and autonomy for the first time. It's not for the faint hearted and sometimes I sit and wonder wtf I've done to myself! But then I look at one of them and the feelings of love and pride are incomparable, and it is worth it - for me. For others, the priorities are different, and that's just as valid an experience.
Nobody is ever 'right' in this debate: there is more than one 'right.'