Yes I speak, read and write Arabic, though it was not my mother tongue. My dad tried to teach us when we were young. But it was only when I went to university and went to Egypt that I learnt it well.
Huh? I always thought arabic was your mother tongue. What
is your mother tongue then?
And it's great to know that you can still master the language when you're slightly older, like you did.
I was was born and brought up in the UK and we spoke English at home (my mother is English) and although my dad (who is Egyptian) tried to teach us Arabic we really weren't interested.
It was when I became a practising Muslim at the age of 20 that I took interest in learning Arabic. I went to SOAS and learned Classical Arabic and studied tafseer etc... I also visited Egypt every year so learned colloquial Egyptian too (I also know colloquial Moroccan quite well too).
I would say that one who has studied classical Arabic probably understands the Qur'an better than most people for whom Arabic is their mother tongue because colloquial Arabic is not the same as Classical Arabic and being able to speak colloquial is not the same as being literate or proficient in Classical Arabic. It actually surprised me how ignorant many Arabs are of the language of the Qur'an.