"Mis padres no querían mudarse a Florida pero cumplieron sesenta años y esa es la ley"

Simplified Meaning:

When people get older, they often feel pressure to make certain choices or changes because society expects them to. In this case, the speaker is humorously saying that when people reach the age of sixty, it seems like they have to move to Florida, even if they don't want to. This is a funny way to talk about how common it is for older people to retire and move to warmer places. For example, many retirees go to Florida because of the warm weather, which is good for their health and makes life more enjoyable. So, if someone feels like everyone their age is doing a particular thing, they might say it feels like a law, even though it's not really a rule they have to follow. Thinking about this, people can realize it's important to make their own choices rather than just following what others do. If a person doesn't want to move away from their home, they should feel comfortable staying where they are happy, instead of feeling pressured to do what everyone else is doing.