Q&A for How to Keep Bees in Minecraft

You can keep a bee as a pet if you want to, but not in the same way you can a dog or a cat. You cannot tame bees and they will not follow you like dogs will unless you are holding a flower. You can however keep a beehive in or near your base to keep bees as pets. You can't mount or fly a bee either.

Bees will wander around their hives on their own to find flowers or attack players. You can keep them around their hive by building an enclosure around them, trapping them inside.

Yes. Bees were added in Bedrock Edition 1.14.0 on December 11, 2019 along with other bee-related stuff like beehives, honey, honeycomb, etc.

Good question. Did you put the nest in a jungle tree? Whenever I am building a tree house on top of a jungle tree the leaves always decay. If you put the nest in a different kind of tree like oak, spruce, or acacia it's probably just a bug that you should report to Mojang. And it usually doesn't decay with naturally spawned nests because they usually spawn in oak trees, which aren't as sensitive as jungle trees.

Place flowers to distract them remove any nearby flowers because they may run away. Or you can use leads and place them on fences, so they don't go away.

While the real reason hasn't been revealed, it is known that Mojang likes to raise awareness for endangered animals by adding them into the games along with semi-realistic features, like how pandas are hard to breed. In real life, most bees can't swim in water, so this probably influenced that feature.

Yes. Bees will sting anything that tries to harm them, be it a dog or a player or a wither.