How are people in arab countries regarding foreigners learning arabic?

Assalamualaykum. I am planning on learning Arabic, and ive heard i have to start with MSA, then a dialect. I dont live in the arab countries, i am from pakistan. I might visit any gulf country from time to time... maybe next year? Anyways, how friendly are local arabs regarding a foreigner learning their language? In france its pretty bad, i speak german too and germans were fine with me. So how are the arabs...? And i heard most ppl dont understand MSA. Is this true?