I went on a little thought journey about this, partly because I’ll never have my own biological kids (snip snip). Ironically, I have a family tree that is traced back to the 1500s. My branch will just stop. I’m OK with that - this is my choice. There will be a lot of branches that just stop because of unfortunate deaths. The difference is whether it’s by choice or not, maybe?(?) Is this a bad thing anyway?