I got into Sanderson when I picked Mistborn era 1 off my dad's bookshelf, he lent me MB because he wanted me to read a good female protagonist. He also had tWoK part 1 which I read next. He didn't have the rest of the stormlight books because he was having trouble getting through tWoK. But, by the time I finished oathbringer I was like DUDE YOU NEED TO READ THIS (and his now reading RoW). Then my dad pulled out Elantris from the back of his bookshelf. His Elantris was obviously well loved and falling apart; I had a blast reading it. My dad and I continued to trade cosmere books, and now we're both obsessed with Sanderson and we bond over his books.
Part of the reason i love Sanderson so much is because it has provided easy segways in convos with my dad into important issues like mental health and other hard-hitting topics that I otherwise wouldnt have to courage to bring up in conversation.