My15yo son does all of his laundry himself (Thank god!!!) and generally does a great job (especially compared to other teen boys). But he is too lazy to do his bedsheets. I think he has done them twice past 12 months! They are gross! Should I care? Should I step in somehow? Is there a health risk? I suppose this will be solved when he is allowed to bring girls into his room never? Lol). What should I do?