These days’ marriage after thirties and having kids in these ages is becoming a trend, while many believe it is a frown upon trend, I firmly believe this way of living can lead to a happy life and its benefits outweigh drawbacks.
Giving birth to older mothers could leave some unwanted disorder for both mothers and infants. It has been approved, pregnancy in matures, might cause some serious illness and have profound effects, especially on infants the number of dying infants among older parents is drastically more than the younger one, also the number of children who have the down syndrome is higher in this period of life. Moreover, a huge age difference between parents and kids can be an issue in their upbringing because they maybe feel less like-minded, etc.
Having appropriate accommodations and occupations, make a stable condition for people in their thirties. It has been proved that individuals in this age pass their both social and occupational infancy, so they have job security and can cope with the cost of living included bills, rent, etc. And are ready to transition, because marriage and having toddlers, definitely is a milestone in people's life and appropriate income can be splendid support for every family. Also, people at thirties are mature enough to avoid some silly failures which can easily ruin families and this maturity can lead a happy life.
In conclusion, I believe making family for people who can afford is the best approach to have a happy life, but in my experience, people in thirties are more reliable and have more successful marriages. 
These days’ marriage after thirties and having kids in these ages is becoming a trend, while  
many
 believe it is a frown upon trend, I  
firmly
 believe this way of living can lead to a happy  
life
 and its benefits outweigh drawbacks.
Giving birth to older mothers could  
leave
  some
 unwanted disorder for both mothers and infants. It has  
been approved
, pregnancy in matures, might cause  
some
 serious illness and have profound effects,  
especially
 on infants the number of dying infants among older parents is  
drastically
 more than the younger one,  
also
 the number of children who have the down syndrome is higher in this period of  
life
.  
Moreover
, a huge age difference between parents and kids can be an issue in their upbringing  
because
 they maybe feel less like-minded, etc.
Having appropriate accommodations and occupations,  
make
 a stable condition for  
people
 in their thirties. It has  
been proved
 that individuals in this age pass their both social and occupational infancy,  
so
 they have job security and can cope with the cost of living included bills, rent, etc. And are ready to transition,  
because
 marriage and having toddlers, definitely is a milestone in  
people
's  
life
 and appropriate income can be splendid support for every family.  
Also
,  
people
 at thirties are mature  
enough
 to avoid  
some
 silly failures which can  
easily
 ruin families and this maturity can lead a happy life. 
In conclusion
, I believe making family for  
people
 who can afford is the best approach to have a happy  
life
,  
but
 in my experience,  
people
 in thirties are more reliable and have more successful marriages.