Can a devotee live without getting married and without joining brahmachari ashrama?

From: amith

can a practicing devotee not get into the bondage of marriage and also not join temple as a fulltime bhramachari..but practise krishna conciousness with congregational devotees and temple counsillars and attend temple programmes,take part in kirtan without any loss of independence?

also if a person has to marry what are the restricted factors..for eg:

how imp is the horoscope?

what is the permitable age diff(how much younger/older the partner can be?)