How good it is to see this picture. When many people grow "old" they wither away and become grumpy and given to a sour disposition. When we see others have a "good" attitude it encourages us. The congregation at Corinth was a mess, sin had taken hold of their lives, but they read Paul's first letter to them and changed. This caused much happiness as you will see from this excerpt from Paul's second letter to them.

2 Cor 7:10-13
10 For godly sorrow works repentance to salvation, which brings no regret. But the sorrow of the world works death.
11 For behold, this same thing, that you were made sorry in a godly way, what earnest care it worked in you. Yes, what defense, indignation, fear, longing, zeal, and vengeance! In everything you demonstrated yourselves to be pure in the matter.
12 So although I wrote to you, I wrote not for his cause that did the wrong, nor for his cause that suffered the wrong, but that your earnest care for us might be revealed in you in the sight of God.
13 Therefore we have been comforted. In our comfort we rejoiced the more exceedingly for the joy of Titus, because his spirit has been refreshed by you all. WEB

Change is a good thing, when the outcome is good. Happiness is the result. For those of us who are about to enter our sunset years, remember that growing old doesn't have to mean you can't stay young at heart. Just as a change from a sinful life to a spiritual one caused joy in Titus, so a rightly lived life in an older person will have the same effect on those around them. You may not want to play hopscotch, but find something new about yourself that will make you better. Anyone out there ever tried Hexagonal chess?