It is very crucial to know if you are going to successid in your future job or not, because you are going to spend many of valuable years of your age to work and explore a specific job, so you have to know what type of job fits you. some people think that in past, it was easier to identify what type of job would secure your future success. In my point of view, people are able to be familier with jobs better nowdays than past for few reasons.
First, internet has made a massive data source for us. People can simply search about a particular job on internet and download many information about the job, while people in past did not have access to internet. For example, if you would like to know what skills a computer expert should have or how much salary you recieve, with one click you can search it on google, even obtain answeres of questions that you did not ask.
Second, people that have experience in a job can be found everywhere. due to increase of population, most of jobs have been tried out by some people, so you can always find someone that has experince in your intended field, while people in past lived in small groups, and most of them had experience in small number of fields of work.
Finally, people are educating in universities to become proffesional in jobs that current world needs. Thanks to school and universities, people can study different subjects to indicate their favourite field of study based on their majors before choosing a career, while people in past did not study academically, so their choice was more based on luck rather than wisdom or knowledge.
Basically, I think people are able to identify their future job easier because internet is always online to answer our questions and education system is there to teach us about future outcomes and due to large number of people you can always ask someone that is experienced more tha you. 
It is  
very
 crucial to know if you are going to  
successid
 in your  
future
  job
 or not,  
because
 you are going to spend  
many
 of valuable years of your age to work and explore a specific  
job
,  
so
 you  
have to
 know what type of  
job
 fits you.  
some
  people
  think
 that in  
past
, it was easier to identify what type of  
job
 would secure your  
future
 success. In my point of view,  
people
 are able to be  
familier
 with  
jobs
 better  
nowdays
 than  
past
 for few reasons. 
First
, internet has made a massive data source for us.  
People
 can  
simply
 search about a particular  
job
 on internet and download  
many information
 about the  
job
, while  
people
 in  
past
 did not have access to internet.  
For example
, if you would like to know what  
skills
 a computer expert should have or how much salary you  
recieve
, with one click you can search it on google, even obtain  
answeres
 of questions that you did not ask.
Second,  
people
 that have experience in a  
job
 can  
be found
 everywhere.  
due
 to increase of population, most of  
jobs
 have  
been tried
 out by  
some
  people
,  
so
 you can always find someone that has  
experince
 in your intended field, while  
people
 in  
past
  lived
 in  
small
 groups, and most of them had experience in  
small
 number of fields of work. 
Finally
,  
people
 are educating in universities to become  
proffesional
 in  
jobs
 that  
current
 world needs. Thanks to school and universities,  
people
 can study  
different
 subjects to indicate their  
favourite
 field of study based on their majors  
before
 choosing a career, while  
people
 in  
past
 did not study  
academically
,  
so
 their choice was more based on luck  
rather
 than wisdom or knowledge. 
Basically
, I  
think
  people
 are able to identify their  
future
  job
 easier  
because
 internet is always online to answer our questions and education system is there to teach us about  
future
 outcomes and due to large number of  
people
 you can always ask someone that  
is experienced
 more  
tha
 you.