Re: Wrong girl for brother
^ The Quran tells (mafhoom) us to help one another in Piety and Taqwa but not in sin and transgession. You would have to answer it yourself... is your not telling your parents encouraging his sinnig (or at least providing him with an easy way of committing it).
Dawah is compulsory on every Muslim, and who owes this right upon us more then our relatives?
Dont blame the girl... if you say your'e brother is an adult then this is his decision to commit sin, not the girl's.
And it is possible for 50 years old to not know the gravity of the sins they commit, so how about your 21 yr old bhai?
It is never too late for a person to change and get back onto the path that would please Allah SWT (and Him only), so plz try to do so.
My brother had a couple of desi friends... they were into a lot of the fitnas present in the kaafir societies we live in, but Subhanallah both of them have changed so dramatically... one of them just woke up one day and realised how wrong he'd been, and the other took it one step further... he deferred his degree and went to some Islamic university in Madina for a year!
guide him to the best of your ability, make loads of dua and leave the rest to Allah SWT.