This is wrong! The emergency fund is built to protect your bitcoin investment and not the reserve fund, that is why it is seen as the most important backup fund which has one specific purpose of acting as the last line of defense preventing you from tapping into your portfolio for survival or to solve unforeseen financial challenges. It is important to build your emergency fund alongside your accumulating bitcoin until it is at least 3 months worth of your expenses budget.
While you DCA into your bitcoin portfolio, you also put money into building your emergency fund and in that way, you're adequately preparing funds to tackle any emergency, while your bitcoin portfolio remains protected.
The reserve funds can also be used to take care of real life emergency before tapping from your emergency funds if your reserve funds isn't enough to tackle the problem. Reserve funds is very flexible and can be used for different purposes which are buying during the dip, use to solve a real life emergency before touching your emergency funds, you can also use it to go and eat in an expensive restaurant and your reserve funds can also be used to buy a bicycle for your child on his birthday if you are short of funds.
Your emergency funds is strictly for unforeseen circumstances that plays out during your accumulation stage and it's not flexible. It's good to set up both your emergency funds and reserve funds as you are building your bitcoin stash in preparation for the future obstacles that wants to prevent you from succeeding in your bitcoin investment.
You are right, the emergency funds represent it name, which is to take care of emergency circumstances, but reserve funds on the other is multi purpose, it can be used to strengthen the emergency funds when the need arises, it can also be used to improve your discretionary income too when in need and also can be used for aggressive buying of bitcoin if there is need for that too.
So we should know that our emergency funds cant be touch unless it for an emergency purpose but reserve funds is a different case. It is very flexible and adjustable. That what it said the reserve funds is also very important in every investment, especially for a long time investment.