Age gap advice.

Before I start, I wanted to post this here because I know the age gap group doesn’t have as much activity and I really would like feedback. I am 26 years old and have been dating a 53 year old for about 7/8 months now. I am now falling in love with him, not sure if he’s falling in love like I am but we do tell each other I love you, but he’s everything I always wanted in a man and treats me amazing and that’s my reason of falling in love. There is definitely a difference between loving someone and being in love ofcourse and I am aware of that. So my thing now is, families and telling everyone and revealing this relationship. On my end, My parents will not be ok especially my mother she has always been against age gap couples , she thinks anyone dating a younger person is only with them for grooming purposes or because the younger person is naive which I 100% disagree.. I have a few family members that will be ok with it, like my grandfather, aunt uncle maybe a few cousins. My sister is also against it when I told her about him when we first started dating she was disgusted and worried, she thinks there’s nothing a 26 year old can offer a man in his 50s. Basically saying I’m useless, even though I have my own government job, car, apartment, bills, I treat him well, I have a good head on my shoulders, mentally and emotionally supportive what else is it that I am suppose to be offering…. She also thinks older men are with the younger women to control and groom. So I was lost and still am lost about that. Any advice on this? I wanna come out with our relationship but I am worried what the negativity will do… it’s like I finally find someone that checks off all the boxes, we get along great, we never argue, very supportive of each other and now I have to worry about ppl close to me creating friction, or even people close to him because he has a daughter who is my peer who is vvvv close to him & im worried she won’t like me and gonna wanna know what the hell I am doing with her father. How do you be with someone who is disliked by a close family member? IS THAT POSSIBLE and okay?