If your mother knows ballroom dancing, she can dance with her classmates. I know a lot. At my age, people will go to the ballroom or D Square to dance. It's easy to meet many partners.
If you have a sports background and spare money, you can learn yoga, aerobics or swimming.
You can also have time to climb down Baiyun Mountain or go to the park. Many people like to get singers together and bury them.
You can also volunteer in Guangzhou, which can help more people in need.
One thing is, if your mother doesn't work too hard, she can help people clean part-time.
40 years old, according to his age, he may not want to sing Cantonese opera, but he will sing more revolutionary songs in the next decade.