Its about you. I smelled Le Male on older guy and it was amazing and it suited him much better than to many adolescents that use it too. So its up to you what are you comfortable to wear.. and what suits you best.
I dont think that sweet frags are not suitable for older men. Some of them smell more youthfull (e.g. JOOP Jump, Rochas Man) and some older (e.g. Guerlain L'Instant, Pure Malt..) etc. but other people can perceive them different.