I still sweat bullets if I go on The Tonight Show, but I tell myself, You can either have fun tonight or you can be shy and miserable. You ask my friends or anyone I work with now - nobody would say I was shy.
Having pets can teach us a lot of things. For kids, they are often their first lesson in responsibility, and being responsible for the well-being of another living thing is actually great for anyone, kid or adult. It teaches empathy, consistency, and so much more - especially if that pet is a dog.