Birthday partys can be divided into two main groups. The
first type of party is where the guests attending are mostly
friends of the person having the party. In this type of party
the audience will often be about the same age as the person
celebrating, most younger teenagers parties will fall into
The second type of party is more of a mix of friends and
family and this will include a much larger age range. 18th
and 21sts birthdays partys are normally seen as great family
occasions so often, there will be ages 1 to 91 are in attendance.
If you are planning a 18th birthday party and your gran and grandad are coming, they may not like the music played by your DJ mate who just plays hardcore dance tracks. On the other hand if the DJ plays 1970's disco music all night your friends will be reaching for their coats and heading for the exit.
With a teenagers party like an 18th birthday this can be a big problem, because on a Saturday night most 18 year olds will have a choice between two or three parties to go to. Teenagers will text each other during a party to compare which one is the best. If your party is slow to get going and the DJ is playing tracks to please just the older family members the news will spread and the teenagers present may arrange to meet up at a different party. A party that gets of to a slow start may sometimes never really have a chance to get going.