You can see two kinds of sentences here. Some of them are correct for everybody. The others you can agree to, if you wish, but you can argue with them as well. Correct for everybody Can argue with Football players with long hair are better. One can only go out in a very expensive fur coat in January.
Elderly people have to be treated with respect.
One has to get up in the morning with a big jump. One must love others as one loves oneself. The birch is more beautiful than the oak. God has to be loved most of all in the world. Higher buildings are better than lower ones.