@amishmanish thanks for clearing some things, I have more questions 
Okay I get it I have to open a payment chanel to transact. But what if I don't open a chanell? How are others going to send me via segwit? Will others need to open a chanell with them puting their money and me putting 0btc?
One thing, by using these addresses that begins with "3" am I automatically using SegWit? And If I am automatically using SegWit how is channel even being opened when I can simply generate paper wallets with these "3" and receive lots of coins without even going online and contacting any node to open a channel for me or to open one myself. Or I should look at them as ordinary btc addresses that start with "1"?
Could you comment on this? https://www.youtube.com/watch?v=UYHFrf5ci_g and read first comment there if you have time
Okay I get it I have to open a payment chanel to transact. But what if I don't open a chanell? How are others going to send me via segwit? Will others need to open a chanell with them puting their money and me putting 0btc?
One thing, by using these addresses that begins with "3" am I automatically using SegWit? And If I am automatically using SegWit how is channel even being opened when I can simply generate paper wallets with these "3" and receive lots of coins without even going online and contacting any node to open a channel for me or to open one myself. Or I should look at them as ordinary btc addresses that start with "1"?
Could you comment on this? https://www.youtube.com/watch?v=UYHFrf5ci_g and read first comment there if you have time