Sprawdzenie rozprawki

BArdzo proszę o sprawdzenie rozprawki. Proszę o poprawienie przedimków i wytłumaczenie ( często mam z nimi problemy do tej pory;/). No i ogólnie proszę o opinię.
Temat:
Coraz mniej młodych ludzi decyduje się na zawarcie małżeństwa przed trzydziestym
rokiem życia. Napisz rozprawkę przedstawiającą wady i zalety zakładania rodziny
w późniejszym wieku.

In prevent generations, people used to start a family earlier than now. These days less and less people decide to marry under the age of thirty years old. What are the arguments for and against this idea?
First of all, in many cases, married contribute to the end of a carelessness. Not only have not single people leave theirs convinient life but also can advance (themeselves ?). They have plenty of opportunities to ejnoy and appreciate life. Second of all, it is important to become an independant person before starting a family. This independence can be guaranteed by finishing studies and gaining an experience. Moreover, postponing a decision about getting married let prevent a divorce. Living together before a marriage is a marvelous manner to know a partner's habits and check if the particular person is appropriate one.
However, opponents claim that the people older, the marriage more problematic. If a woman is over thirty years old, can she have a lot of difficulties with pregnant. Statistics show that the most proper age to get pregnant is under thirty years old. Furthermore, being a freelancer for days leads to many clouds with finding a partner. Rarely do people want to leave theirs selfish habits and start to think about the others. Finally, it is said that if a child is born late, it could never know its grandparents. The parents older, the smaller chance for grandchild to have grandparents.
Taking everything into account, getting married has both positive and negative aspects. Some young people do not mind starting family under the age of thirty, but others would prefer to have more freedom.

up

In prevent???? generations
These days less and less???? people
married contribute to the end of a carelessness. CO TO ZNACZY?
FYI starting a family = have a baby
by finishing studies and gaining an experience. EXPERIENCE tu jest niepoliczalne

In 'prevent' |(popraw) generations, people used to start a family earlier than now. These days less and less people decide to marry under the age of thirty. 'years old' (niepotr).
First of all, in many cases, 'married contribute to the end of a carelessness.'(co to jest?) 'Not only have not' (to nie jest po ang - co to ma znaczyc?) single people leave 'theirs' (zle slowo) 'convinient' (ortog) life but also can advance '(themeselves ?)' (ortog). They have plenty of opportunities to 'ejnoy' (ortog) and appreciate life. Second of all, it is important to become an 'independant' (sprawdz) person before starting a family. This independence can be guaranteed by finishing studies and gaining an experience (ale czego? lapania motylkow? czego?). Moreover, postponing a decision about getting married 'let prevent a divorce' (noew rozumeim co to ma znaczyc). Living together before a marriage is a marvelous 'manner' (zle slowo) to know a partner's habits and check if the particular person is (brak przedimka) appropriate one.
However, opponents claim that 'the people older' (cos tu nie tak), the marriage (brak czasownika) more problematic. If a woman is over thirty years old, can she have a lot of difficulties with (tu brakuje slowa) pregnant. Statistics show that the most 'proper' (zle slowo, jak 'getting pregnant moze byc improper?) age to get pregnant is under thirty years old. Furthermore, being a 'freelancer for days' (tego nie rozumiem) leads to many 'clouds' (nie rozumiem, co niebo ma do czego?) with finding a partner. Rarely do people want to leave 'theirs' (zle slowo) selfish habits and start to think about the others. Finally, it is said that if a child is born late, it 'could' (za silne, moze 'may') never know its grandparents. 'The parents older' (po jakiemu to jest? dlaczegfo tlumaczysz slowo w slowo z polskiego, kiedy DOBRZE wiesz ze jez. ang nie polega tylko na tym), the smaller (brak przedimka) chance for (przedimek) grandchild to have grandparents Some young people do not mind starting (przedimek) family under the age of thirty, but others would prefer to have more freedom(to do what? trzeba napisac).