Forget about everything else and just put everything on bitcoin. You are living with your parents, they pay everything for you, you got nothing to lose. If I was living with my parents, I would save everything and buy bitcoin monthly. If BTC doesn't keep rising you can still reach the 21 BTC holder group, then save this and retire in 10 years when the price makes you a millionaire.
Go all in on regret later. You are on a privileged position to profit from high risk high reward moves. No risk no win, and BTC is the best long term high risk bet.
I cannot push doing things like all in with BTC because I also have my expenses and need to pay some bills. I am working to hard to invest and to enjoy atleast 10-20% of my BTC income. Life is too short, we must observed our happiness and our family's bonding moment. Work hard, save for the future, invest in BTC and enjoy also while you are young.
You are right, young people can go all in with BTC if they can do it correctly. They can save because they do not have the responsibilities yet unlike with the adults. I salute those young people who already think of their future at the very young age.