Mya, I can't answer your questions as I am still on my journey and have only recently told my SA about the B/K I'd like. However, I would like to address your point regarding 'not want to buy things just to buy to get offered a birkin'. I very much can relate and totally agree. Until let's say a year ago, I only occasionally visited H boutiques, typically while traveling and occasionally picked up a scarf, nothing else. When I decided I wanted a B/K, I couldn't imagine buying enough items to 'meet the quota'. I decided I'd buy pre-loved. I've spent so much time online stalking bags and in the process learned a lot about the bags and the options available. Finally, I decided to also look at other things in the store just because. I met my current SA and really liked her, but only bought sandals and a calvi. I use my calvi daily and can't believe the quality. I bought another one in another color (more will come into my life for sure). I also wore the sandals alot and wanted more. At every visit, my SA showed me pieces I might not have otherwise considered. I learned a lot from her and seeing the items in person had me appreciate the quality and uniqueness in many items that I would have never considered or noticed by merely browsing a website. I have since bought from many categories and items I would have never conceived buying at the outset of my journey. But I can honestly say, I love all my pieces and treasure them. Most of my items I use almost daily which is a huge compliment to a brand/item (imo). I guess what I'm trying to relate is 1) never buy something you don't like or that doesn't make your heart sing (even if every other influencer has it) and 2) just visit the store and have them show you items, ask questions and let them educate you on the brand, craftsmanship and design. You don't have to buy alot to go on this journey, but you may find that you love a lot more items than you think you might looking in from the outside. Just my thoughts...
Good luck!