Will a Snow Leopard installation be easy enough for a 15 year old?

I’m pretty young so i’m wondering if the installation is difficult. Also do I need to update my computer with all the lastest updates before installing? I haven’t had internet in a while and wont for 1 or 2 weeks. Do I need to update or can I just do a clean install and it will be fine. I don’ have many important files so I’m doing a clean install to avoid some problems. Thanks