If that 100 dollars is for your allowance , and you can only spend a little then of course you can invest the remaining in bitcoin since that money is just coming from your parents and you have nothing to lose.
better start investing now or be late next year.
the price now is still cheap till second month of 2024 so be ware , you have at least 4-5 months to invest so take that advantage.
He wants to spend all of them to buy Bitcoin. I think he's still studying and that's his allowance for his school, food, etc.
OP don't make it look like Bitcoin is a bad thing for investing all of it because it will make you like as an irresponsible student and son.
I'm just saying that invest what you can afford to slash from that $100 monthly that your pops is giving you.