why collect insects?

I?ve been wondering, what is it based on, that mentally challenged people shouldn?t stay at home staring at the wall (even if they wanted to) and instead get moving and go to work or anywhere etc.? I haven?t been doing the last much in quite a while and I admit I?m not getting better. I just wonder what?s the point of being active if it gives you nothing and feels like nothing, I?ve read many say no matter what they do, it doesn?t help, which also makes it harder. I would like to want to get up and go to the uni, but I just don?t. So why should I, will my brain cells start partying again if I feed them with sights and sounds? (I?m not being hostile, just asking so that I?d say ?ohhh, that?s why?now I?ll gotta hurry up and go collect insects?.
You may want to say "duh" :roll: , and you're welcome.