Ok, let say there is an autism student studying in a special school and his parents say that they want their son will soon be able to live normally in the community.
Should I use the term "assimilate the society" to express that idea?. Ex, parents want their son will soon assimilate the society.
First up: the adjective for a person diagnosed with autism is 'autistic', i.e.: 'an autistic student'.
To answer your question, "assimilate the society" doesn't make any sense, as in this context the word 'assimilate' means to absorb or incorporate into one's self. You could say "assimilate into society", as 'society' in this case is the larger entity that accepts new members.
You might also consider:
I'd personally simply avoid the use of words like 'normal' or 'regular' as it inherently implies that the autistic person is 'abnormal' or 'irregular', which could be considered offensive to some people.
From a UK perspective, we prefer using 'the community' to describe:
a particular area or place considered together with its inhabitants
The student will presumably be moving either to live independently, or in some form of supported housing?
You may wish to convey this transition as follows:
Mr and Mrs X are keen that their autistic son, Y, is supported in his move towards:
independent community living
living independently in the local community
Or:
Mr and Mrs X would like their autistic son, Y, to live in supported housing within the local community.
