in any day and age where computers and games are involved age.. means Bugger all.
it's self determination, a dream.. dedication to learn something new and improve on it.
and experience.
way i got my level design job wasnt through grades or degreee's. to be honest my grades suck.
but they set me on based on my learning curve is easyer, faster. and i'm determined to learn and improve on what i do. and i kinda got some previous experience with world building. so that was a plus.
but dont let age get you. Age isnt everything. its the experience and know how that does it.
it wouldnt matter if you were 8 or 78, if youve never done something before and wanted to give it a try. and did good at it. they would use it. simple as