What is the ruling on a committed young man refraining from work because it conflicts with manifestations of commitment, such as growing a beard and attending Friday prayers, and the resulting anger of his parents?

One must strive to appease the father, for his anger is dangerous, and disputing with him or raising one's voice at him is an act of disobedience (ʿUqūq) that necessitates repentance. This is in accordance with the Almighty’s saying: "And your Lord has decreed that you shall not worship except Him, and to parents, goodness. Whether one or both of them reach old age [while] with you, do not say to them [even] 'uff,' and do not repel them but speak to them a noble word. And lower to them the wing of humility out of mercy and say, 'My Lord, have mercy upon them as they nurtured me when I was small.'"

As for being prevented from growing a beard and praying, this is an excuse for not working in those entities, because there is no obedience to a creature in disobedience to the Creator. It is permissible to shave the beard for one who is coerced, as the Almighty says: "while He has explained in detail to you what He has forbidden you, except what you are compelled to." And whoever cannot find permissible work and is exposed to perdition, it is permissible for him to work in those entities, and he should pray the Friday prayer as Dhuhr if he cannot establish it. Piety towards Allah, patience, and dutifulness to parents are the key to relief and ease.