1. Most likely. As countries are moving to have Bitcoin as their national reserve, I believe in the future they may be thoughtful of including Bitcoin as a personal finance someone is free to have for their future.

2. If Bitcoin still exists till then, I am sure in my old age, I am going to give out my accumulated Bitcoin to my children. They are the ones I am laboring for. For them to have a better future in the world of digital currency.

3. I can't tell any coin that could last till then since I got to learn about coins that existed in the crypto space a few years ago no longer exist in the crypto space because they have lost value, get rug pulled, or turned out to be a scam.

However, I don't know what will happen to the coins that appear in the crypto space currently, whether they will stay in the market in 50 years to come