You’re always free to take the quick way out. Don’t be so quick to condemn 8 billion other humans to the same short lifetime just because you can’t imagine living longer.
Ok you very much misunderstood. I was saying that nobody would be forced to live forever: assisted suicide would always be an option for those who tore of life.
It's all about perspective. From where you are, 100 seems enough. For a 7 year old, 42 seems enough. But if could die tomorrow and you'd be offered the chance to live another day, you'd probably take it. And then the next day, and then the next. And days will become months and months will become years and so on and so forth.
I don't think lone immigrants would immigrate if they had to cut contact with people they knew.
It's also a big difference in outlook -- people that would scoff at life extension would also be the people ready to "end" something in life, and not constantly be at the teat of something. For example, young soldiers in WW1. That sort of outlook is alien to most now, modernity's pit of comfort makes a fool of anyone who partakes.