On r/poveryfinance and similar subreddits, one can always find someone complaining that they're about to become homeless because they can't afford rent, begging others to please tell them what line item can be cut from their budget to make it work, the conceit being that they consider every item essential. Mixed in among the electrical and water and costs of commuting to work will be $100/month for dog food or cat litter or whatever.
Not only is there no value there, there is, quite often, anti-value. And this is just the quantifiable stuff, these people follow their dogs around picking up their feces with their hands.
Where did you get this premise from?
This quote heavily implies pets are bad for adults. Maybe it wasn't your intent.
By explicitly calling out that "[they] are wonderful for children" you are implicitly calling into question their value for adults. Whether that was your intention or not, it's certainly how I read your statement.