passivity towards anything- this phrase doesn't work for me. How about something like 'have a passive outlook on life' ?
aren’t sometimes used to decide- deciding
eras of this nation and Czech country- there's redundancy here
free time with their friends and families discussing anything- discussing anything sounds weak to me- why n0ot use 'chatting' or, if you want to suggest more serious talk, 'coversing'
British and American nation- how many?
too self-confident people- people who are too...
Student or Learner