Not one opinion matters more than your's and your husband's
Your wedding day is something that you will look back on forever. Do not let anyone make you feel as though you should change your vision or accommodate their needs. You two, as the bride and groom, make the final decisions. When asking advice from parents or friends, take it and still conclude your own decisions to ensure you have zero regret. If you and your fiancé decide you want to elope, do it. If you decide you want to have a destination wedding, go for it. If you only want to invite close family, that is one hundred percent up to you. If you want to run down the aisle by yourself, you can do that. Do not feel guilty for making YOUR vision come to life.
You are not obligated to invite someone "because they're family"
Family or not, if you haven't found time in my life to be involved, why would I want you at one of the most important events of my life? Simply because someone is related to you doesn't mean they have a reserved seat at your wedding!!??!!?!?!? Your guest list is your guest list and if you decide you don't want to invite your uncle, brother, sister, father, or whoever, that is your call and you shouldn't feel bad for it.
To the bride, put your foot down
You may be an easy going person like me and you're okay with not having all of the control, but this is one time in your life where you need to have it! This is your wedding and if you allow your guests to tell you who they're bringing, you may end up spending thousands more than anticipated. When I started planning my wedding, my mother told me, "I hate the color pink, but I know you love it, and if you want to hot glue a pink flower on every single piece of decor, I'll love it. This is your day and you make the calls." I've been grateful to have such a supportive mother and in laws, but if it ever comes to someone telling you what to do for your wedding, stand your ground!!!!
All in all, do what makes you and your soon-to-be husband happy. This is your day that you will cherish for a lifetime. Your families have already had this experience, or will have it eventually, it's your turn right now!
