Whenever the topic of Lego comes up, most people around me either have fond childhood memories or are flabbergasted by the creativity it breeds. I have yet to see negative reactions. The only people that get looked at sideways are people that build entire Lego cities for Lego trains in their houses, occupying entire rooms. People seem to think that that's creepy. It's pretty close to model train fans anyways. I'd be delighted to just play MF0 in such a city, treating the MF as power armor instead of towering Mecha.