Coworkers tell me they pitty me

I have been at this company for almost a year and keep to myself in the sense that I don't go cubicle to cubicle talking to my coworkers like others do.

I used to have an office and am used to waiting until people come to me if they need me or me going to them if I need them.

I come in to work and leave. I generally don't like sharing details of my personal life.

However, this behavior of mine has garnered a lot of attention and about 7 of my coworkers have essentially told me that they are either sad for me that I stay in my cubicle, ask me if I live by myself and don't have family nearby and offer me to let them know if I need anything, or tell me I'm too quite.

Once a manager told THEIR manager that I was unmotivated (they told me they felt bad that I was at my desk all the time) and their manager had a chat with me.

I'm 29 years old and have been working in this industry for a while and had never had this experience before.

Should I try to incorporate myself into "the culture" (ew) or keep doing what makes me comfortable?