If you:

my (@array, ...) = (list);
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@array gets the entire contents of the list. Your sub flattens (@$age, %$home) into a list of scalars and they all end up in @age_r. You don't even need the sub to be involved. Consider:

use strict;
use warnings;

my @age = (20, 30);
my %home = (Kelvin => "Tokyo", Andrew => "New York");
my (@age_r, %home_r) = (@age, %home);
print "@age_r";
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prints:

20 30 Kelvin Tokyo Andrew New York
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However:

...
my ($age_r, $home_r) = (\@age, \%home);
print "@$age_r";
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prints:

20 30
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so for your sub you should return a list of references then use the syntax as shown above. In your sub you simply:

        return ($age, $home);
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