The desire to lose mobility (I'm not talking about immobility btw)

Hello, I want to share one of my dreams related to my weight gain until I become very obese. I'm still at a somewhat normal weight and I still have a lot to gain, but I have a dream I want to fulfill: losing some mobility.

I feel that my obesity continues to increase, and I'm noticing more difficulty with mobility in certain areas. I want to be clear that I don't want to reach immobility; I want to be able to live a "normal life," be able to walk relatively well, drive, and so on, you know. I mean, I don't want to be a huge, immobile mass of fat in my house (I find people who are admirable, but it's not something I personally want).

For example, these are some of the things I would like to experience:

-Feeling difficulty getting out of bed or a chair, and feeling it even more each time, due to my very high weight.

-Tiredness when moving, and finding it increasingly difficult to bend over and all that.

-Having to adapt some furniture due to my severe obesity. For example, my desk chair no longer fits because I gain weight, and having to use a specialized chair for morbidly obese people. For example, also in the car, having to use seatbelt extenders and even enlarge the seat.

These are some things I'd like to experience on this topic; they really excite me. I'd like to hear other people's opinions, especially those who are already in this situation, to gain advice and their experience.