28 yrs old Single - hope to remain so forever. Parents forcing to find someone

I am 28 and have been single all my life. It was my decision to be single forever since when I was a child. I often have extreme urge call it -- tharak -- but 2 3 rounds of my hand and I am back on track. I never felt the need of any other person other gender to be their around me . I feel I am good alone and content. But lately parents are like sarcastically taunting that they won't be forever blah blah ... Basically saying me to marry but I have made clear to them and the most firm decision I have is not to marry ever. It's idiotic.. cuz why to marry ? S*x ? Thats it's right . So look at this way why to marry for the thing u can do without marrying and that too if u have some money then new dishes each month. This is when u want madly to have s*x else ur hand is self sufficient. Am I missing something? Anyone who is not married and is ok or anyone who is married and now regrets or anyone who is married and for it ?