Thank you for reaching out about this issue. I can imagine that this is a sensitive subject, but I am sure there are others who wonder the same thing.
In this society there is a lot of stigma when it comes to body image, including when there is a message that “size matters”. But when it comes to sex and intimacy, size really does not matter. Sexual intimacy is more than sexual intercourse. This is an opportunity to find new things do with each other, rather than focusing on one way of doing it specifically. Men who have smaller-than-average penises who find a lot of sexual confidence often do so through educating themselves in all these other ways of engaging sexually.
I hope this helps,