I am agree with you that bitcoin have not any stable job for everyone. only trading is a way to get profit which is not confirmed.
but as you said that no one know when bitcoin stops. this is not right. bitcoin took it's place and it won't stop ever. its price may drop and up but it won't get dead or hide.
and to be true there are lots of stable jobs also. but these are for educated and skilled persons. like developers. designers. programmers. and lots of peoples are already doing full time job.
To make a life from bitcoin you dont need to be skilled, you need luck if you are just focus into trading and if at others ares you need just some project related to bitcoin, soo this can be a paid task and then become your source of bitcoins, sure isnt easy to build a business and achieve sucess instant.
exactly! trading successfully will depend on the level of knowledge that you have gained throughout the years. that dude thinks trading is the same as gambling as he is talking about luck. he is probably yolo buying himself some coins hoping the price will shoot up to way higher price levels in a short time. it doesn't work like that. there are too many dreamers in this forum.