Solitude helps to improve concentration and increase productivity. When you remove as many distractions and interruptions as you can from your day, you are better able to concentrate, which will help you get more work done in a shorter amount of time.

Solitude gives you an opportunity to discover yourself and find your own
voice. When you’re a part of a group, you’re more likely to go along
with what the group is doing or thinking, which isn’t always the actions
you would take or the decisions you would make if you were on your own.

Solitude
can enhance the quality of your relationships with others. By spending
time with yourself and gaining a better understanding of who you are and
what you desire in life, you’re more likely to make better choices
about who you want to be around. You also may come to appreciate your
relationships more after you’ve spent some time alone.

Source: psychologytoday