At what age is it stupid to start exercising?

Schooling is always a sacrifice of your time, energy, and money; it’s only “stupid” if the reward isn’t worth the risk. Age isn’t a part of that equation.

If you really want to answer this question for yourself, pick a goal and figure out a way to get it. Make a plan. How much money do you need? Can you save up before? Pick up extra shifts, get a second job.

If you decide it’s worth it, do everything you can to make it happen. Otherwise you’re just making excuses for yourself.