It might work out, it might not... age is just one of the factors in relationship.

and as for people pointing out the far far future... I am not saying "do not think of the future"... but how many relationships last for life? Maybe you can have great couple years together... you never know what will happen anyways. If you otherwise seem to match, it might be worth trying.

Also, I think it's more important at what place in life you both are... if you want to study for several years and he is having a great career that may require moving around (an example), it may not work out. If you both see yourself on simmilar path couple years from now... it could work out.