Well, we had to set some limits. Once you're not working you have all kinds of opportunities to socialize and it can get out of hand. There are times when we just stay home all day to recharge our batteries.................
Uhm, I think the difference is that ER affords more opportunities, not fewer. ER just means that there's less chance to meet working people during work hours. Luckily the world is full of people who are also free during working hours and frankly they're a lot more fun to be around than the work-related stuff. Activities can center around shared interests instead of shared misery.
I could easily spend 8 hours a day socializing, but then nothing would ever get done at home and I'd be wore out by the end of the week. Like Nords said, "the world is full of people who are also free during working hours". I go the local coffee shop a couple times a week and visit with several old friends that are also retired. Through those friends, I've made several new friends over the last few months. I've also renewed some old acquaintances that I lost track of over the past many years.
Over the years I've also made friends with a lot of people who work in the stores and shops that I've frequented. So just about any time I have to run for groceries, clothes, hardware, or whatever, I run into folks that I know and we visit a little here and a little there.
I keep my eyes open for things going on in the community also. Like community dinners, school fund raisers, concerts, lectures, sight-seeing trips, and local festivals. I also look over the offerings at the local community college to see if there's anything happening that interests me. I'm also a member of a VERY active garden club, along with a lot of really neat people!!! I like doing those things, not to stay busy (I can stay plenty busy without any outside help), but rather for social interaction and to meet new people....and maybe make a new friend or two.
A week ago I went with a group from the community college on an 8 hour, 70 mile paddle-wheeler trip from Starved Rock State Park (about 90 miles SW of Chicago) to Peoria, on the Illinois River. Saw a couple of old friends, and met a lot of new people. It was a great and leisurely way to socialize. Also lots of good food and great entertainment!
There are a few other retirees here in my neighborhood, along with several other really nice w*rking folks, and we chat and visit back and forth, and watch out for each other.
My 80 year old Mom has her Tuesday morning coffee clutch, bi-weekly local AARP chapter meeting, Senior Center activities, Bingo once in a while, the casino boat about once a month, plays, concerts, and activities at the library. She doesn't go for the "activity"....she goes to be around her friends!
So retirement doesn't have to be lonely at all. Like Want2retire said, it just takes some planning and a little action, like all the other aspects of planning for retirement.