This sentence often appears in the scenes of parents to children, elders to younger generations and so on. People themselves should be independent individuals, elders or their parents, and actually can't enjoy the right to decide our lives. In China, parents often have a high degree of intervention in their children's lives.
When children don't want to do anything, but they are forced to do it by their parents, parents often say this sentence, "For your own good." We are not saying that parents' educational decisions are all right, but behind this proverb, is it really a decision that is beneficial to children? Such an excuse is actually like a kind of moral kidnapping, which makes children endure their own desires and accept the compulsive intervention of their parents in the name of love.
Just get used to it:
Habits are often not formed overnight, whether you form a habit yourself or get used to other people's habits. But the sentence "just get used to it" itself is a very inaccurate sentence. There is no need to force yourself to get used to some unbearable phenomena in life.
It is someone else who is wrong, but that person tells you to get used to it. For example, there is always a person in the library who likes to make noise, and others advise you to get used to it. However, this phenomenon itself is an abnormal phenomenon, and it is even more illogical for us to force ourselves to be tolerant by habit.