Linzhi
With an altitude of more than 2,900 meters and good vegetation, many tourists will not suffer from altitude sickness. However, whether each tourist will have (severe) altitude sickness varies from person to person, and there is no way to predict in advance.
If you go by plane (
Linzhi
Mirin
The airport’s altitude is 2,949 meters), so there is no need to cross sections above 4,000 meters above sea level, which may not cause altitude sickness.
Suggestion: It is best to take your child to travel to a place above 3,000 meters above sea level, and stay for a day or two in a place above 3,000 meters above sea level to confirm that she has no altitude sickness.
On New Year’s Day in 2018, when I was traveling by car to Hongyuan (the county seat is 3,500 meters above sea level), there were also tourists taking their children to play in the frozen Suomo River.

In late August 2018, I drove on the G318 South Sichuan-Tibet Line to Lhasa:

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