When Mt. Gox collapse in 2014 did people lose their bitcoins?
Of course, they lost their coins, the initial estimate was that about 850 000 BTC was stolen/lost, and then they found about 200 000 BTC which to this day have not been returned to their rightful owners. It is without a doubt the most tragic event in the short crypto history that set back progress and caused great distrust towards BTC and crypto exchanges.
It was also more common for people to mine at home, because specialised hardware was not yet available nor required.
That's right, anyone could mine BTC with a personal computer and earn hundreds of BTC every day, considering that the reward per found block was as much as 50 BTC. Those who then realized at least approximately the potential of Bitcoin, used their computers in the best possible way, and certainly far better than those who played games and downloaded torrents.