26F looking at solo travelling Europe for 2–3 weeks – group tour or go alone?

Exploring Europe Solo: Group Tours vs. Independent Travel for a 2–3 Week Trip

I’m a 26-year-old Australian considering a solo European trip of roughly two to three weeks. I’m weighing whether a guided group tour or independent travel would be the better fit, and I’d value insights from others with similar preferences.

What I’m looking for
– Social, but not focused on partying: I’d like opportunities to meet other travelers around my age, enjoy occasional drinks, and have a chance to connect with people—though I’m open to meeting older travelers as well.
– Convenience and comfort: After a long day of sightseeing, I would prefer comfortable hotel accommodations rather than hostels. While I’m not against budget options, I’m drawn to itineraries that offer a higher level of comfort and a well-organized schedule.
– A balance between structure and flexibility: I’m attracted to the idea of having some aspects planned, especially since this would be my first major trip to Europe. I’ve had mixed experiences arranging trips for myself and a travel partner in the past, so I’m somewhat hesitant about completely self-planned travel.
– Destination scope: I tend to avoid long flights if possible, so I’m considering a multi-country itinerary that maximizes time in the places I’m most interested in, while possibly returning later to spend more time in favorites. I’m aware that short stays make it challenging to truly experience a country, but I’m selective about where I’d like to linger.

Options I’m considering
– Group tours: Companies like Trafalgar, G Adventures, Intrepid, Contiki, Topdeck, and similar operators offer itineraries that cover multiple destinations with included logistics, accommodations, and some activities. My impression is that Trafalgar’s hotels look appealing and comfortable, which is a plus. However, I haven’t found a group program yet that feels like a perfect fit, particularly regarding pace, included experiences, and group dynamics.
– Independent travel: Traveling solo without an assigned group tour means more control over the itinerary, pace, and accommodations. It promises greater flexibility to spend more time in places I love, but it requires more upfront planning and research—and I’m aiming for a smoother, less stressful experience given my first-time European trip.

What I’d love to know
– For travelers with a preference for comfortable accommodations and a sociable, not-party-focused vibe, what has worked well: a guided group itinerary with built-in social opportunities, or a self-planned itinerary with a mix of structured tours or day trips?
– How do you balance visiting multiple countries in a two to three week window with the desire to spend meaningful time in places you’re most excited about?
– Any insights from travelers who have used either approach (group tours vs. independent travel) and can speak to the pros, cons, and realistic expectations?
– If you’ve taken a European trip with similar preferences, which specific itineraries or routes would you recommend, and why?

I’m open to feedback from travelers who share these preferences, including those who have traveled solo or joined a group tour. Thanks in advance for any guidance or recommendations.

TL;DR: I’m deciding between a group tour (Trafalgar, G Adventures, Intrepid, Contiki, etc.) and independent travel for a two to three week European trip. I prefer nicer hotels, want a sociable experience without a heavy party focus, and aim to visit multiple countries without excessive flying. I’d appreciate practical advice and recommendations from those with similar travel goals.