First of all, I turned 50 last year. As far as goals go:
1. I do cardio to keep in shape for soccer and cut fat. Of course, the heart benefits are a factor as well.
2. My lifting goals are not to get “huge” but to get strong and ripped. Last year for my 50th I gave myself the gift of hitting a life long goal of benching 2x my body weight. Although I was probably getting close to being bigger than I want. I need to maintain flexibility for soccer and martial arts. I like getting a six pack, but it’s too difficult to maintain more than a couple of months. I just can’t keep my body fat that low for long. Not if I want to drink.
My routine (which probably sucks) is to lift hard and do lots of cardio from January - May and then ease off into maintenance mode for the rest of the year.