This is tough, because I think it really depends on the individual. I know that for me, if I'm pressured to do something, I will be more likely not to want to do it because I'm stubborn and typically rebellious. As for many others, I've seen plenty of people give in to pressure from others and do something. This is a good thing if it was something they could do that was good for them, but unfortunately this isn't always the case. Just because you worded it as 'most definitely' and it's more split than something that mostly happens, I'll say disagree. *Yoda's voice* Much over-thought, that one was... XD
Aside from those that are allergic, everyone would benefit from having a (non-human) animal in their family.