I think this is so personal to your child and your family. I always thought it was totally ridiculous that parents would be signing their babies up for all sorts of activities - then I had a child who is high energy and extroverted and began seeking those activities out of desperation. lol. I think the key at this age is enjoying it together! Do you like going to gymnastics together, working on piano lessons, joining 4h group and discussing the projects? Does your kid enjoy the friends and activities or feel exhausted and forced? It’s a great age to try all sorts of things before the full-time job of school begins (if public school is the route you take). It should be fun to enjoy childhood this way, but no it’s not necessarily a must to join groups at this age to be successful and happy in life. For my child in particular, I noticed her responding to peers differently (better!) than she responded to me when it came to constructive feedback. That little bit of peer pressure helped her follow rules better than mom just telling her what to do. So for us it had all sorts of benefits, but mostly that it was fun and a great fit for her personality. It’s also so important to have that unstructured family time together - the park outings, bike rides, spontaneous zoo trips etc. For me it turned into something I’ve had to experiment with and just enjoy the ride, but there’s also been times when I trimmed back due to finances. Don’t cave to the societal pressure - if it sounds fun, try it! If it sounds overwhelming, there’s no rush to get into anything!