Many thanks to all your kind and prompt responses. It has made my perceived issues way clearer.

Hi all,
new to this forum and have a few questions to understand BTC better, as I am a firm believer it's the way of the future but still have some things that confuse me - please bear with me:
1. How did BTC increase in value to current values from first BTC? compared to stocks/ shares etc.these have underlying value based on income, assets etc.
2. for future BTC growth, if more people hold on to BTC as an "investment" than use it, does not present any issues?
3. Volatility and purchasing power - isn't this a potential issue? If I bought a car for example for 50BTC, and the current fiat value was worth $ 50 000, but then in a years time the BTC value halves (or doubles), does that not mess around with underlying value of anything significant you may buy with BTC?

sorry, if silly questions and thanks for your patience!