It really varies from what I’ve seen.
My niece had an engagement party, but that’s because her mother in law wanted to throw one.
My nephew and his wife went to dinner, just the 2 of them after they got engaged. His fiancee’s friends took her out to lunch to celebrate her engagement a week or so after, but it was pretty casual.
I’ve never heard or known of anybody doing a bridal party reveal. I have heard of brides sending gifts to the bridesmaids to be asking them to be in their wedding, but I’ve never heard of any sort of event or party.
Same with picking out the wedding dress. My D was her friend’s maid of honor (her friend only had 2 bridesmaids) and she went along with the bride, the mother of the bride and her mil (the other bridesmaid was out of town for a funeral) to go wedding dress shopping. They did go for a late lunch afterword, since they were all hungry and there was a restaurant nearby. But it wasn’t a huge event or anything…
As for wedding showers, the most I’ve heard of someone having is 4. But in that case it was due to family and friends being scattered all over the country and her parents were divorced and 2 of the showers were pretty small. My niece had 2 showers. And my nephew’s now wife had 2…her main one, and one that some co-workers had for her. From what I’ve heard about D’s friends, I’d say most had 2, but a good amount had just 1. I’d say among who we know, 2 seems to be the average. Anything over 2 is the outlier. My other nephew’s wife didn’t have a shower, they already had everything they needed.
As for wedding after parties…from what I’ve seen it’s usually just “hey if you want to hang out after the wedding with the bride and groom, feel free to come.” And everyone just pays for their own drinks or whatever.
As for a breakfast/brunch the day after, again I’ve seen different things. In many cases, there is nothing the day after. In some cases it’s been a casual, “feel free to join us for brunch if you’d like,” and it’s a casual non-hosted event. I’ve only been to one where it’s been a hosted sit-down event.
As for a welcome event, again I’ve seen all sorts. In many cases there is no welcome event. In others it’s just a casual come meet us at a restaurant or come for pizza at the hotel.
D’s friend’s “welcome party” at her wedding was just pizza out by the pool at the hotel that the bride’s parents ordered. People could come and go…
I’ve only been to one lavish welcome party.
We have some family friends who are very wealthy. They had a welcome dinner for their daughter’s wedding in the party room at a very nice restaurant. They had an open bar, jazz band, appetizers, a nice menu, and very good desserts. The restaurant has a great view of the city and the party was on July 4th, so we all watched fireworks after dinner. The day after the wedding the bride’s parents hosted a brunch in their backyard (they have a gorgeous garden and house). You could tell they had rented tables, chairs, tableclothes, and cutlery. It was a full catered affair, complete with waitstaff, a mimosa bar as well as coffee and water being served, and a string quartet. The wedding shower, rehearsal dinner, and wedding itself were also very lavish. It was all very lovely and classy. But, I’d say this was the only case where I went to a welcome party and after wedding brunch that were fancy catered affairs that are probably more fancy than some weddings…