I don't want to go on vacation with my mom alone?

She has booked the hotel & flight to England but now that I am definitely going, I don't know if I should??? I think I should, instead, be going with my dad? I think it is strange to be going on a holiday to London with my mom only; have I made the wrong decision? (really really stupid question here:) has this reduced..my masculinity (im 16)???. I dunno what to do >.< what should I do?