Do you smoke cigarettes? Do you or have you had a great amount of sun exposure? Exposure to ultraviolet light, UVA or UVB, from sunlight accounts for 90% of the symptoms of premature skin aging. Most of the photoaging effects occur by age 20. In general do you have an unhealthy lifestyle (i.e.: dehydration due to alcohol, lack of water intake, abusing one's body (intentionally or unintentionally), lack sleep, are under a great deal of stress, etc.? What do you attribute your crows feet to? I am asking these questions, as it is important to know why a 24 year old has crows feet.
I would not be against anyone making an intelligent decision to get any procedure, but you are very young for botox. Do you really need it? Why not post some pics so forum members can give you adequate feedback?
Remember it causes temporary paralysis, and you might not be able to make certain facial expressions if it is not done properly. Also remember, it is a temporary fix. You will have to maintain your look.