Does the death of an elderly person cause calamity or a decrease in barakah (blessing) for his surviving family members?

Death is a great calamity and trial, with
which a person’s good deeds and lifespan come to an end, and the individual
goes to meet his Lord. If he did good then the outcome will be good, and if
he did evil than the outcome will be bad. Death causes tears to flow,
saddens the heart and provokes grief. 

Allah, may He be exalted, says
(interpretation of the meaning): “And certainly, We shall test you with
something of fear, hunger, loss of wealth, lives and fruits, but give glad
tidings to As-Sabirin (the patient ones, etc.)” [al-Baqarah 2:155]. Loss
of lives is included among the calamities that may befall people. 

And Allah knows best. 

All of this has to do with general
guidelines. With regard to what is mentioned in the question, about the
death of elderly people being a cause for calamity to befall the family, or
a cause of a decrease in barakah, this is something for which there is no
evidence whatsoever. People older and younger are constantly dying; if the
death of an elderly person was a cause for a decrease in barakah or of
calamity occurring, barakah would have been erased in this world and one
calamity after another would have befallen the members of every household.
But this is contrary to what is seen and known, and it is different from the
way in which Allah has ordained things should occur in this world. How many
elderly people have died, yet their families enjoyed blessing after they
were gone, either because of wealth that was left to them or because of a
blessing that was bestowed upon them, or because of a woman getting married
and other things that are seen and well-known. 

Moreover, what connection do the living
have with the death of the elderly person, such that calamity as mentioned
by this questioner would befall them, regardless of whether the deceased was
righteous or otherwise? Allah, may He be exalted, says (interpretation of
the meaning):

“Whoever goes right, then he goes right
only for the benefit of his own self. And whoever goes astray, then he goes
astray to his own loss. No one laden with burdens can bear another’s burden”

[al-Isra’ 17:15]. 

Rather real calamity befalls people with
the death of a scholar of whose knowledge the people are now deprived, or
one who was devoted to worship and obedience, or one who did things that
bring benefit to people, such as striving in jihad for the sake of Allah,
enjoining what is good, forbidding what is evil, giving charity and zakaah,
and so on. All of that has nothing to do with whether a person is young or
old; rather it has to do with how he is, the benefits he brings to people,
and the blessings he brings to his surroundings. Undoubtedly the death of
such people is a loss of goodness and barakah, and detracts from people’s
religious and worldly interests. Those who are most sorely affected by their
loss are those who are close to them, but this does not mean that another
calamity will befall them after that, unless they do after that an action
that deserves that. It was narrated that ‘Abdullah ibn ‘Amr ibn al-‘Aas
said: I heard the Messenger of Allah (blessings and peace of Allah be upon
him) say: “Allah will not take away knowledge by snatching it away from the
people, rather He will take away knowledge by taking away the scholars
until, when there is no scholar left, people will turn to ignorant leaders
who will be asked questions and will issue fatwas without knowledge. They
will go astray and lead others astray.” Narrated by al-Bukhaari (100) and
Muslim (2673) 

And Allah knows best.