The reason why DCA should not be underrated. It could make you rich in the process as long as you do it more consistently and patiently. Regardless of the condition of the market, never stop from doing DCA but always stick on the basic as always, invest only at an amount you can afford to lose. That way, bitcoin or altcoins, you are not just lessening the risk from losses, you are also increasing the chances to gain massive profits in the future and become eventually rich while focusing on DCA.

Maybe the reason they go choked on their invest are "Their financial capacity is not really prepared for marriage life set up or They are immature to handle such situation and they are happy go lucky guy" that's why they choked up on their long term investment made with bitcoin.

If they make their selves became financial stable then everything will be sorted out according on what's best thing to do on this matter.

Also if the investor knows how to deal  related to their investments and separate their obligations to their family then everything would provably work out. The most important of all is to explain to your wife that you have this investment and you need to separate a desired amount since you are dealing with bitcoin for long term. For sure everything will be understandable and all will work out if proper discussions will be made.

It is true the marriage can chocked up at the moment but if the investors plan is to invest for a long term and still keep on accumulating more Bitcoin using that DCA strategy to accumulate Bitcoin and continue hodling there will definitely be a moment of joy in the family and both couples by the time Bitcoin price start going high because his Bitcoin investment has yeild out enough profit. Everything is about planning and what you want for your self.