Some brewers ALWAYS secondary, some NEVER secondary, and some, like me, only secondary if they think the recipe requires it -- bigger beers, certain yeasts, certain styles, dry hopping, extended aging time, etc.
Don't sweat it, probably best to keep it to primary only for first few batches, then step it up from there if you feel like it. The beer will all be great!
The search feature in this site is AWESOME, so give it a try, generally there are a lot of similar questions out there and a great base of knowledge -- I learned a ton from threads on this forum!
Welcome and happy brewing.