We have to be clean in our own vision

First of all, here's a tip you can try for yourself and by which you can understand the importance of cleanliness. Whenever you feel depressed or too lazy or anything negative, try observing yourself in front of a mirror. You will notice that your appearance i.e. the charm in your face, etc are almost lost compared to your how you appear when you are happy. Now, take a warm shower and dress up neatly such that the next time you look back in the mirror, you would notice the same charm on your face which was present when you are happy.

You will now notice that you are no more feeling down and you are feeling super active like a warrior. This is the wonderful thing about maintaining cleanliness. On a social level it matters because someone who doesn't stay clean will obviously start to stink. On a personal level: physically, one who isn't clean will be prone to infections at least in the long run. Mentally, an unclean body could be a sign of depression.

You mentioned that beggars can survive without being clean but let me tell you, food, shelter and clothes are basic necessities in order to survive but there are many beggars who are deprived of these very basic necessities. Many of them don't get nutritious food. Leave alone nutritious food, sometimes they end up starving. Yet they survive, but does that mean they are leading a healthy life? Most of them might be suffering from vitamin deficiencies. Our body can endure adverse situation up to some extent. We are not so weak to succumb to death so easily. It is not that you can't survive if you are not clean but it will have adverse effect on your body. When you don't have bath for few days, your body gives you signals by producing bad odor so that you could take bath and remain healthy.

Nobody in your life really matters. They are just negligible. They will leave someday. You will leave someday. Nobody ever plays a big role in your life (except few which I will mention below). So caring for other people, generally being nice might be good, but then if you are being nice with everyone and all the time, you'll feel like being used. The point is, nobody really matters, in the next 10 years, 1/6th people you know right now will forget you. 1/2 of the people you know right now, their views won't matter. 3/5 of the people wont talk to you at all after 10 years. In the 2/5 you'll hardly talk to most of them. Out of all, only 2 or 3 will be the people still having a bit of importance. So finally, nobody really matters.

Now the exceptions. Your Parents! (I know this feels really clichéd and stuff, but one day, you'll realise that they are the only ones who matter the most. I. Mean. It.) A Real Loving Best Friend. (it's hard to find, Hard to maintain, but had infinite rewards). About 3 True Friends. (The ones that'll never leave you and they know it, you know it, everyone does. Finding them is nearly impossible. Find them and cherish life.). True love that loves you back. (Marry that person. Stay with her/him forever. Trust. Love. True Happiness). The beggars you mentioned… if they have a full body check up I'm pretty sure there'll be medical problems. Only a lucky few would have immune systems strong enough to fight infections.

Everybody matters in life. I am taking it you are very young, and am wondering how did you get such low self-esteem and such a cynical attitude towards life? You have to turn things around and somehow start believing in yourself a bit more. When one is young and trying to find their way in life, it is not unusual to have doubts and insecurities, we have all had them. But to downgrade life and people in such a way is going to be really unhelpful towards your future. Life is a learning experience. Along the way we meet good people, and not so good people. You cannot denigrate everyone because you seem to have got in with the wrong people.

I nearly lost my life a couple of years ago, and I met through circumstances absolute strangers who pulled me through the difficult times, as well my own family and friends, and here I am to tell the tale. I mattered to them. They mattered to me. I think you must really change your mindset in some way or another. May be you need to talk to someone with expertise about your feelings. It may be that you are depressed, I do not know. But take it from me. Everything and everyone matters in life, and when the time comes that certain people do not matter any more you just move on to those that do. Cheers!