When I got married about 10 years ago (divorced now), I wanted what you want. My ex-wife wanted what you don't want. So, we compromised. We had a traditional Catholic wedding mass and a small-ish (50 people?) party at a very nice restaurant afterwards. The only way I got through it -- like I did most things -- was by drinking a lot (recovering alcoholic now). At that point in my life, I was so self-conscious that even 5, let alone 50, people there would have made me pretty uncomfortable. These weddings with like 500 guests?!? OMG, I can't even imagine.
If I were to do it again (which I'd like to if I can get the first marriage annulled) will be different. Maybe not *that* much different, however, as over the years I've learned to deal better and better with crowds. I have to treat a crowd as whatever number of individuals it consists of, and deal with them one by one in some sort of order. I start to get overwhelmed in a group of 3, 4, 5, unless I know everyone *really* well (like family members) or have some sort of seniority over them (like at work). Even then, it's still far from perfect.
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Put the curse of loneliness on every boy and every girl,
Until everybody's kickin', everybody's scratchin',
Everything seems to fail ?
And it was all for the want of a nail.