my mother also has savings that she has been working on for a long time and also has the same goal and is sometimes used for emergency funds.
So good that you and your mother already thought of money for emergency and actually have it.
And with this I took the initiative to plan this which I will do in stages and my plan is, using $3 a day from my mother's grocery store in 30 days = $90 that I will spend in Bitcoin every month. And I will also increase my purchases when my mother has excess money or unexpected money because that often happens.
It is impossible to DCA with $3 daily and even with altcoins, you will lose a lot of the fund percent to trading fee and withdrawal fee. If I am right, exchanges have limit on minimum value you can trade and likely $3 is not enough too.
It is possible to DCA with $90 monthly and I hope it is your plan. Estimate your DCA investment with $90 in next 12 months.
https://dcabtc.com/Can I know what is Haji?