Bedrock version accessibility

I think that bedrock edition should have the ability to downgrade their version. There’s a multitude of different reasons depending on who you ask. Some may want to downgrade so they can play custom bedrock mods that are no longer being worked on and no longer receive updates. Some may also just want to feel nostalgic. I feel that it would be nice to add the ability to access older versions. Thank you for your time and I hope this may make an impact.