Shyness in dating
The late-onset shyness you've noticed is likely a new found self-consciousness.
Even if they were outgoing, their confidence may falter.
Talk about the social situations that worry them most, and brainstorm ways they might make themselves feel more comfortable.
Don't, however, turn into your child's social director.
If your child has abruptly become withdrawn, they may be going through a "hibernation" period to allow themselves to think about all the things that are confusing them, from romance to academic pressures to peer relationships.
During this phase, which typically is brief, your child may hide in their room, even when relatives or friends drop by.