I'm a shy introvert too - and there's nothing wrong with that. The world would be very boring if we were all the same!
When I look at the dses, I can see ways in which they are similar to dh and to me, and ways in which they are different - and I rejoice in both their similarities and their differences.
Obviously it is easier to understand and empathise with someone who has a similar character to yourself, than with someone who is very different, but as parents, it is our responsibility to accept our children as they are, to learn to understand them, and then to support them to be who they are, not who we think they should be. Disclaimer - I don't mean we should support them to be bad or unkind people or to waste their talents or hurt other people - but we should see the positive aspects of their character and abilities, even when we don't share those characteristics or abilities, and encourage them to make the best use of them.
We support our dses - we offer advice, and practical help if they want it. We have just supported ds3 through the decision to move from one university to another - he had chosen a course at a university that was a long way both from us, and from all his closest friends, and whilst he enjoyed the course, he didn't make any friends there, and so became lonely and depressed. He decided that he wanted to move to a different course, in the same city where a number of his friends are at university - and we supported this decision. He will have to go back a year, so he will do 5 years at university, instead of 4 (we are in Scotland, where degrees are 4 years not 3), so we will have to support him for an extra year, but it is worth it to see him so much happier.
I was really worried about him, in the early months of the year - I could hear the unhappiness in his voice, and it was clear to me that he was becoming depressed. Thankfully he has been able to make the change of course, and his mental health has improved already - but I dread to think what would have happened if we had dismissed his depression as being a snowflake generation fad, or if we had refused to support him.